diff --git a/grammar.js b/grammar.js
index 0d59fea..feee2c9 100644
--- a/grammar.js
+++ b/grammar.js
@@ -12,7 +12,14 @@ module.exports = grammar({
     _end: ($) => choice(";", "\n"),
 
     connection: ($) =>
-      seq($.identifier, repeat1(seq($.arrow, $.identifier)), $._end),
+      seq(
+        $.identifier,
+        choice(
+          seq(seq($.arrow, $.identifier, ":", $.label)),
+          seq(repeat1(seq($.arrow, $.identifier)))
+        ),
+        $._end
+      ),
 
     shape: ($) => seq($.identifier, optional(seq(":", $.label)), $._end),
 
diff --git a/src/grammar.json b/src/grammar.json
index 9fcbb49..0e96b58 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -42,20 +42,56 @@
           "name": "identifier"
         },
         {
-          "type": "REPEAT1",
-          "content": {
-            "type": "SEQ",
-            "members": [
-              {
-                "type": "SYMBOL",
-                "name": "arrow"
-              },
-              {
-                "type": "SYMBOL",
-                "name": "identifier"
-              }
-            ]
-          }
+          "type": "CHOICE",
+          "members": [
+            {
+              "type": "SEQ",
+              "members": [
+                {
+                  "type": "SEQ",
+                  "members": [
+                    {
+                      "type": "SYMBOL",
+                      "name": "arrow"
+                    },
+                    {
+                      "type": "SYMBOL",
+                      "name": "identifier"
+                    },
+                    {
+                      "type": "STRING",
+                      "value": ":"
+                    },
+                    {
+                      "type": "SYMBOL",
+                      "name": "label"
+                    }
+                  ]
+                }
+              ]
+            },
+            {
+              "type": "SEQ",
+              "members": [
+                {
+                  "type": "REPEAT1",
+                  "content": {
+                    "type": "SEQ",
+                    "members": [
+                      {
+                        "type": "SYMBOL",
+                        "name": "arrow"
+                      },
+                      {
+                        "type": "SYMBOL",
+                        "name": "identifier"
+                      }
+                    ]
+                  }
+                }
+              ]
+            }
+          ]
         },
         {
           "type": "SYMBOL",
diff --git a/src/node-types.json b/src/node-types.json
index a3f4bc2..70b9171 100644
--- a/src/node-types.json
+++ b/src/node-types.json
@@ -19,6 +19,10 @@
         {
           "type": "identifier",
           "named": true
+        },
+        {
+          "type": "label",
+          "named": true
         }
       ]
     }
diff --git a/src/parser.c b/src/parser.c
index b9e825f..446059f 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -6,14 +6,14 @@
 #endif
 
 #define LANGUAGE_VERSION 14
-#define STATE_COUNT 38
+#define STATE_COUNT 43
 #define LARGE_STATE_COUNT 2
 #define SYMBOL_COUNT 28
 #define ALIAS_COUNT 0
 #define TOKEN_COUNT 15
 #define EXTERNAL_TOKEN_COUNT 1
 #define FIELD_COUNT 0
-#define MAX_ALIAS_SEQUENCE_LENGTH 4
+#define MAX_ALIAS_SEQUENCE_LENGTH 6
 #define PRODUCTION_ID_COUNT 1
 
 enum {
@@ -246,20 +246,20 @@ static const TSStateId ts_primary_state_ids[STATE_COUNT] = {
   [11] = 11,
   [12] = 12,
   [13] = 13,
-  [14] = 13,
+  [14] = 14,
   [15] = 15,
-  [16] = 13,
+  [16] = 16,
   [17] = 17,
   [18] = 18,
   [19] = 19,
   [20] = 20,
   [21] = 21,
-  [22] = 22,
+  [22] = 21,
   [23] = 23,
-  [24] = 11,
-  [25] = 25,
+  [24] = 24,
+  [25] = 21,
   [26] = 26,
-  [27] = 27,
+  [27] = 13,
   [28] = 28,
   [29] = 29,
   [30] = 30,
@@ -270,6 +270,11 @@ static const TSStateId ts_primary_state_ids[STATE_COUNT] = {
   [35] = 35,
   [36] = 36,
   [37] = 37,
+  [38] = 38,
+  [39] = 39,
+  [40] = 40,
+  [41] = 41,
+  [42] = 42,
 };
 
 static bool ts_lex(TSLexer *lexer, TSStateId state) {
@@ -324,14 +329,6 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
       END_STATE();
     case 4:
       if (lookahead == '\n') SKIP(4)
-      if (lookahead == '\'') ADVANCE(22);
-      if (lookahead == '\t' ||
-          lookahead == '\r' ||
-          lookahead == ' ') ADVANCE(26);
-      if (lookahead != 0) ADVANCE(27);
-      END_STATE();
-    case 5:
-      if (lookahead == '\n') SKIP(5)
       if (lookahead == '`') ADVANCE(33);
       if (lookahead == '\t' ||
           lookahead == '\r' ||
@@ -339,6 +336,14 @@ static bool ts_lex(TSLexer *lexer, TSStateId state) {
       if (lookahead != 0 &&
           lookahead != '\'') ADVANCE(27);
       END_STATE();
+    case 5:
+      if (lookahead == '\n') SKIP(5)
+      if (lookahead == '\'') ADVANCE(22);
+      if (lookahead == '\t' ||
+          lookahead == '\r' ||
+          lookahead == ' ') ADVANCE(26);
+      if (lookahead != 0) ADVANCE(27);
+      END_STATE();
     case 6:
       if (lookahead == '-') ADVANCE(19);
       END_STATE();
@@ -504,37 +509,42 @@ static const TSLexMode ts_lex_modes[STATE_COUNT] = {
   [4] = {.lex_state = 1},
   [5] = {.lex_state = 1},
   [6] = {.lex_state = 0, .external_lex_state = 1},
-  [7] = {.lex_state = 0, .external_lex_state = 1},
-  [8] = {.lex_state = 2},
-  [9] = {.lex_state = 1},
-  [10] = {.lex_state = 7, .external_lex_state = 1},
-  [11] = {.lex_state = 7, .external_lex_state = 1},
+  [7] = {.lex_state = 1},
+  [8] = {.lex_state = 0, .external_lex_state = 1},
+  [9] = {.lex_state = 2},
+  [10] = {.lex_state = 1},
+  [11] = {.lex_state = 2},
   [12] = {.lex_state = 7, .external_lex_state = 1},
-  [13] = {.lex_state = 3},
-  [14] = {.lex_state = 4},
-  [15] = {.lex_state = 8},
-  [16] = {.lex_state = 5},
-  [17] = {.lex_state = 5},
+  [13] = {.lex_state = 7, .external_lex_state = 1},
+  [14] = {.lex_state = 7, .external_lex_state = 1},
+  [15] = {.lex_state = 3},
+  [16] = {.lex_state = 4},
+  [17] = {.lex_state = 3},
   [18] = {.lex_state = 4},
-  [19] = {.lex_state = 3},
-  [20] = {.lex_state = 5},
-  [21] = {.lex_state = 1},
-  [22] = {.lex_state = 7, .external_lex_state = 1},
+  [19] = {.lex_state = 1},
+  [20] = {.lex_state = 7, .external_lex_state = 1},
+  [21] = {.lex_state = 4},
+  [22] = {.lex_state = 3},
   [23] = {.lex_state = 7, .external_lex_state = 1},
-  [24] = {.lex_state = 8},
-  [25] = {.lex_state = 3},
-  [26] = {.lex_state = 4},
-  [27] = {.lex_state = 1},
-  [28] = {.lex_state = 0, .external_lex_state = 1},
-  [29] = {.lex_state = 0, .external_lex_state = 1},
-  [30] = {.lex_state = 1},
-  [31] = {.lex_state = 1},
+  [24] = {.lex_state = 1},
+  [25] = {.lex_state = 5},
+  [26] = {.lex_state = 8},
+  [27] = {.lex_state = 8},
+  [28] = {.lex_state = 5},
+  [29] = {.lex_state = 5},
+  [30] = {.lex_state = 0, .external_lex_state = 1},
+  [31] = {.lex_state = 0, .external_lex_state = 1},
   [32] = {.lex_state = 0, .external_lex_state = 1},
-  [33] = {.lex_state = 0, .external_lex_state = 1},
-  [34] = {.lex_state = 0, .external_lex_state = 1},
-  [35] = {.lex_state = 0},
+  [33] = {.lex_state = 1},
+  [34] = {.lex_state = 1},
+  [35] = {.lex_state = 0, .external_lex_state = 1},
   [36] = {.lex_state = 0, .external_lex_state = 1},
   [37] = {.lex_state = 0, .external_lex_state = 1},
+  [38] = {.lex_state = 1},
+  [39] = {.lex_state = 0, .external_lex_state = 1},
+  [40] = {.lex_state = 0, .external_lex_state = 1},
+  [41] = {.lex_state = 0, .external_lex_state = 1},
+  [42] = {.lex_state = 0},
 };
 
 enum {
@@ -567,7 +577,7 @@ static const uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [sym__identifier] = ACTIONS(1),
   },
   [1] = {
-    [sym_source_file] = STATE(35),
+    [sym_source_file] = STATE(42),
     [sym__definition] = STATE(6),
     [sym_connection] = STATE(6),
     [sym_shape] = STATE(6),
@@ -596,12 +606,12 @@ static const uint16_t ts_small_parse_table[] = {
       anon_sym_DASH_GT,
     STATE(3), 1,
       aux_sym_connection_repeat1,
-    STATE(15), 1,
+    STATE(26), 1,
       aux_sym_arrow_repeat1,
-    STATE(32), 1,
-      sym_arrow,
-    STATE(33), 1,
+    STATE(30), 1,
       sym__end,
+    STATE(31), 1,
+      sym_arrow,
   [34] = 10,
     ACTIONS(13), 1,
       anon_sym_DASH_DASH,
@@ -617,12 +627,12 @@ static const uint16_t ts_small_parse_table[] = {
       anon_sym_LF,
     STATE(4), 1,
       aux_sym_connection_repeat1,
-    STATE(15), 1,
+    STATE(26), 1,
       aux_sym_arrow_repeat1,
-    STATE(28), 1,
-      sym__end,
-    STATE(32), 1,
+    STATE(35), 1,
       sym_arrow,
+    STATE(37), 1,
+      sym__end,
   [65] = 9,
     ACTIONS(25), 1,
       anon_sym_SEMI,
@@ -638,9 +648,9 @@ static const uint16_t ts_small_parse_table[] = {
       anon_sym_DASH_GT,
     STATE(4), 1,
       aux_sym_connection_repeat1,
-    STATE(15), 1,
+    STATE(26), 1,
       aux_sym_arrow_repeat1,
-    STATE(32), 1,
+    STATE(35), 1,
       sym_arrow,
   [93] = 2,
     ACTIONS(43), 1,
@@ -659,37 +669,48 @@ static const uint16_t ts_small_parse_table[] = {
       ts_builtin_sym_end,
     STATE(2), 1,
       sym_identifier,
-    STATE(7), 4,
+    STATE(8), 4,
       sym__definition,
       sym_connection,
       sym_shape,
       aux_sym_source_file_repeat1,
-  [121] = 4,
+  [121] = 3,
+    ACTIONS(27), 1,
+      anon_sym_LF,
     ACTIONS(47), 1,
-      ts_builtin_sym_end,
+      anon_sym_COLON,
+    ACTIONS(25), 5,
+      anon_sym_SEMI,
+      anon_sym_DASH_DASH,
+      anon_sym_DASH,
+      anon_sym_LT_DASH,
+      anon_sym_DASH_GT,
+  [135] = 4,
     ACTIONS(49), 1,
+      ts_builtin_sym_end,
+    ACTIONS(51), 1,
       sym__identifier,
     STATE(2), 1,
       sym_identifier,
-    STATE(7), 4,
+    STATE(8), 4,
       sym__definition,
       sym_connection,
       sym_shape,
       aux_sym_source_file_repeat1,
-  [137] = 6,
-    ACTIONS(52), 1,
-      aux_sym_label_token1,
+  [151] = 6,
     ACTIONS(54), 1,
-      anon_sym_SQUOTE,
+      aux_sym_label_token1,
     ACTIONS(56), 1,
-      anon_sym_DQUOTE,
+      anon_sym_SQUOTE,
     ACTIONS(58), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(60), 1,
       anon_sym_BQUOTE,
-    STATE(21), 1,
+    STATE(19), 1,
       sym_label,
-    STATE(31), 1,
+    STATE(38), 1,
       sym_string,
-  [156] = 2,
+  [170] = 2,
     ACTIONS(27), 1,
       anon_sym_LF,
     ACTIONS(25), 5,
@@ -698,174 +719,203 @@ static const uint16_t ts_small_parse_table[] = {
       anon_sym_DASH,
       anon_sym_LT_DASH,
       anon_sym_DASH_GT,
-  [167] = 4,
+  [181] = 6,
+    ACTIONS(54), 1,
+      aux_sym_label_token1,
+    ACTIONS(56), 1,
+      anon_sym_SQUOTE,
+    ACTIONS(58), 1,
+      anon_sym_DQUOTE,
     ACTIONS(60), 1,
-      anon_sym_DASH,
+      anon_sym_BQUOTE,
+    STATE(24), 1,
+      sym_label,
+    STATE(38), 1,
+      sym_string,
+  [200] = 4,
     ACTIONS(62), 1,
-      anon_sym_GT,
+      anon_sym_DASH,
     ACTIONS(64), 1,
+      anon_sym_GT,
+    ACTIONS(66), 1,
+      sym__identifier,
+    STATE(13), 1,
+      aux_sym_arrow_repeat1,
+  [213] = 3,
+    ACTIONS(68), 1,
+      anon_sym_DASH,
+    STATE(13), 1,
+      aux_sym_arrow_repeat1,
+    ACTIONS(71), 2,
+      sym__identifier,
+      anon_sym_GT,
+  [224] = 4,
+    ACTIONS(73), 1,
+      anon_sym_DASH,
+    ACTIONS(75), 1,
+      anon_sym_GT,
+    ACTIONS(77), 1,
       sym__identifier,
     STATE(12), 1,
       aux_sym_arrow_repeat1,
-  [180] = 3,
-    ACTIONS(66), 1,
-      anon_sym_DASH,
-    STATE(11), 1,
-      aux_sym_arrow_repeat1,
-    ACTIONS(69), 2,
-      sym__identifier,
-      anon_sym_GT,
-  [191] = 4,
-    ACTIONS(71), 1,
-      anon_sym_DASH,
-    ACTIONS(73), 1,
-      anon_sym_GT,
-    ACTIONS(75), 1,
-      sym__identifier,
-    STATE(11), 1,
-      aux_sym_arrow_repeat1,
-  [204] = 3,
-    ACTIONS(77), 1,
+  [237] = 3,
+    ACTIONS(79), 1,
       aux_sym_string_token1,
-    ACTIONS(80), 1,
+    ACTIONS(81), 1,
       anon_sym_DQUOTE,
-    STATE(13), 1,
+    STATE(22), 1,
       aux_sym_string_repeat1,
-  [214] = 3,
-    ACTIONS(80), 1,
-      anon_sym_SQUOTE,
-    ACTIONS(82), 1,
+  [247] = 3,
+    ACTIONS(81), 1,
+      anon_sym_BQUOTE,
+    ACTIONS(83), 1,
       aux_sym_string_token1,
-    STATE(14), 1,
+    STATE(21), 1,
       aux_sym_string_repeat1,
-  [224] = 3,
-    ACTIONS(62), 1,
-      anon_sym_DASH_GT,
+  [257] = 3,
     ACTIONS(85), 1,
-      anon_sym_DASH,
-    STATE(24), 1,
-      aux_sym_arrow_repeat1,
-  [234] = 3,
-    ACTIONS(80), 1,
-      anon_sym_BQUOTE,
+      aux_sym_string_token1,
     ACTIONS(87), 1,
-      aux_sym_string_token1,
-    STATE(16), 1,
-      aux_sym_string_repeat1,
-  [244] = 3,
-    ACTIONS(90), 1,
-      aux_sym_string_token1,
-    ACTIONS(92), 1,
-      anon_sym_BQUOTE,
-    STATE(16), 1,
-      aux_sym_string_repeat1,
-  [254] = 3,
-    ACTIONS(94), 1,
-      anon_sym_SQUOTE,
-    ACTIONS(96), 1,
-      aux_sym_string_token1,
-    STATE(26), 1,
-      aux_sym_string_repeat1,
-  [264] = 3,
-    ACTIONS(94), 1,
       anon_sym_DQUOTE,
+    STATE(15), 1,
+      aux_sym_string_repeat1,
+  [267] = 3,
+    ACTIONS(87), 1,
+      anon_sym_BQUOTE,
+    ACTIONS(89), 1,
+      aux_sym_string_token1,
+    STATE(16), 1,
+      aux_sym_string_repeat1,
+  [277] = 3,
+    ACTIONS(91), 1,
+      anon_sym_SEMI,
+    ACTIONS(93), 1,
+      anon_sym_LF,
+    STATE(32), 1,
+      sym__end,
+  [287] = 3,
+    ACTIONS(62), 1,
+      anon_sym_DASH,
+    ACTIONS(66), 1,
+      sym__identifier,
+    STATE(13), 1,
+      aux_sym_arrow_repeat1,
+  [297] = 3,
+    ACTIONS(95), 1,
+      aux_sym_string_token1,
     ACTIONS(98), 1,
+      anon_sym_BQUOTE,
+    STATE(21), 1,
+      aux_sym_string_repeat1,
+  [307] = 3,
+    ACTIONS(98), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(100), 1,
+      aux_sym_string_token1,
+    STATE(22), 1,
+      aux_sym_string_repeat1,
+  [317] = 3,
+    ACTIONS(77), 1,
+      sym__identifier,
+    ACTIONS(103), 1,
+      anon_sym_DASH,
+    STATE(20), 1,
+      aux_sym_arrow_repeat1,
+  [327] = 3,
+    ACTIONS(105), 1,
+      anon_sym_SEMI,
+    ACTIONS(107), 1,
+      anon_sym_LF,
+    STATE(36), 1,
+      sym__end,
+  [337] = 3,
+    ACTIONS(98), 1,
+      anon_sym_SQUOTE,
+    ACTIONS(109), 1,
       aux_sym_string_token1,
     STATE(25), 1,
       aux_sym_string_repeat1,
-  [274] = 3,
-    ACTIONS(94), 1,
-      anon_sym_BQUOTE,
-    ACTIONS(100), 1,
-      aux_sym_string_token1,
-    STATE(17), 1,
-      aux_sym_string_repeat1,
-  [284] = 3,
-    ACTIONS(102), 1,
-      anon_sym_SEMI,
-    ACTIONS(104), 1,
-      anon_sym_LF,
-    STATE(29), 1,
-      sym__end,
-  [294] = 3,
-    ACTIONS(71), 1,
-      anon_sym_DASH,
+  [347] = 3,
     ACTIONS(75), 1,
-      sym__identifier,
-    STATE(11), 1,
-      aux_sym_arrow_repeat1,
-  [304] = 3,
-    ACTIONS(64), 1,
-      sym__identifier,
-    ACTIONS(106), 1,
-      anon_sym_DASH,
-    STATE(22), 1,
-      aux_sym_arrow_repeat1,
-  [314] = 3,
-    ACTIONS(69), 1,
       anon_sym_DASH_GT,
-    ACTIONS(108), 1,
+    ACTIONS(112), 1,
       anon_sym_DASH,
-    STATE(24), 1,
+    STATE(27), 1,
       aux_sym_arrow_repeat1,
-  [324] = 3,
-    ACTIONS(92), 1,
-      anon_sym_DQUOTE,
-    ACTIONS(111), 1,
-      aux_sym_string_token1,
-    STATE(13), 1,
-      aux_sym_string_repeat1,
-  [334] = 3,
-    ACTIONS(92), 1,
+  [357] = 3,
+    ACTIONS(71), 1,
+      anon_sym_DASH_GT,
+    ACTIONS(114), 1,
+      anon_sym_DASH,
+    STATE(27), 1,
+      aux_sym_arrow_repeat1,
+  [367] = 3,
+    ACTIONS(87), 1,
       anon_sym_SQUOTE,
-    ACTIONS(113), 1,
-      aux_sym_string_token1,
-    STATE(14), 1,
-      aux_sym_string_repeat1,
-  [344] = 2,
-    ACTIONS(115), 1,
-      anon_sym_SEMI,
     ACTIONS(117), 1,
-      anon_sym_LF,
-  [351] = 1,
-    ACTIONS(119), 2,
-      sym__identifier,
-      ts_builtin_sym_end,
-  [356] = 1,
+      aux_sym_string_token1,
+    STATE(29), 1,
+      aux_sym_string_repeat1,
+  [377] = 3,
+    ACTIONS(81), 1,
+      anon_sym_SQUOTE,
+    ACTIONS(119), 1,
+      aux_sym_string_token1,
+    STATE(25), 1,
+      aux_sym_string_repeat1,
+  [387] = 1,
     ACTIONS(121), 2,
       sym__identifier,
       ts_builtin_sym_end,
-  [361] = 2,
-    ACTIONS(123), 1,
-      anon_sym_SEMI,
-    ACTIONS(125), 1,
-      anon_sym_LF,
-  [368] = 2,
-    ACTIONS(127), 1,
-      anon_sym_SEMI,
-    ACTIONS(129), 1,
-      anon_sym_LF,
-  [375] = 2,
+  [392] = 2,
     ACTIONS(5), 1,
       sym__identifier,
-    STATE(9), 1,
+    STATE(7), 1,
       sym_identifier,
-  [382] = 1,
-    ACTIONS(131), 2,
-      sym__identifier,
-      ts_builtin_sym_end,
-  [387] = 1,
-    ACTIONS(75), 1,
-      sym__identifier,
-  [391] = 1,
-    ACTIONS(133), 1,
-      ts_builtin_sym_end,
-  [395] = 1,
-    ACTIONS(135), 1,
-      sym__identifier,
   [399] = 1,
-    ACTIONS(64), 1,
+    ACTIONS(123), 2,
       sym__identifier,
+      ts_builtin_sym_end,
+  [404] = 2,
+    ACTIONS(125), 1,
+      anon_sym_SEMI,
+    ACTIONS(127), 1,
+      anon_sym_LF,
+  [411] = 2,
+    ACTIONS(129), 1,
+      anon_sym_SEMI,
+    ACTIONS(131), 1,
+      anon_sym_LF,
+  [418] = 2,
+    ACTIONS(5), 1,
+      sym__identifier,
+    STATE(10), 1,
+      sym_identifier,
+  [425] = 1,
+    ACTIONS(133), 2,
+      sym__identifier,
+      ts_builtin_sym_end,
+  [430] = 1,
+    ACTIONS(135), 2,
+      sym__identifier,
+      ts_builtin_sym_end,
+  [435] = 2,
+    ACTIONS(137), 1,
+      anon_sym_SEMI,
+    ACTIONS(139), 1,
+      anon_sym_LF,
+  [442] = 1,
+    ACTIONS(141), 1,
+      sym__identifier,
+  [446] = 1,
+    ACTIONS(66), 1,
+      sym__identifier,
+  [450] = 1,
+    ACTIONS(77), 1,
+      sym__identifier,
+  [454] = 1,
+    ACTIONS(143), 1,
+      ts_builtin_sym_end,
 };
 
 static const uint32_t ts_small_parse_table_map[] = {
@@ -875,36 +925,41 @@ static const uint32_t ts_small_parse_table_map[] = {
   [SMALL_STATE(5)] = 93,
   [SMALL_STATE(6)] = 105,
   [SMALL_STATE(7)] = 121,
-  [SMALL_STATE(8)] = 137,
-  [SMALL_STATE(9)] = 156,
-  [SMALL_STATE(10)] = 167,
-  [SMALL_STATE(11)] = 180,
-  [SMALL_STATE(12)] = 191,
-  [SMALL_STATE(13)] = 204,
-  [SMALL_STATE(14)] = 214,
-  [SMALL_STATE(15)] = 224,
-  [SMALL_STATE(16)] = 234,
-  [SMALL_STATE(17)] = 244,
-  [SMALL_STATE(18)] = 254,
-  [SMALL_STATE(19)] = 264,
-  [SMALL_STATE(20)] = 274,
-  [SMALL_STATE(21)] = 284,
-  [SMALL_STATE(22)] = 294,
-  [SMALL_STATE(23)] = 304,
-  [SMALL_STATE(24)] = 314,
-  [SMALL_STATE(25)] = 324,
-  [SMALL_STATE(26)] = 334,
-  [SMALL_STATE(27)] = 344,
-  [SMALL_STATE(28)] = 351,
-  [SMALL_STATE(29)] = 356,
-  [SMALL_STATE(30)] = 361,
-  [SMALL_STATE(31)] = 368,
-  [SMALL_STATE(32)] = 375,
-  [SMALL_STATE(33)] = 382,
-  [SMALL_STATE(34)] = 387,
-  [SMALL_STATE(35)] = 391,
-  [SMALL_STATE(36)] = 395,
-  [SMALL_STATE(37)] = 399,
+  [SMALL_STATE(8)] = 135,
+  [SMALL_STATE(9)] = 151,
+  [SMALL_STATE(10)] = 170,
+  [SMALL_STATE(11)] = 181,
+  [SMALL_STATE(12)] = 200,
+  [SMALL_STATE(13)] = 213,
+  [SMALL_STATE(14)] = 224,
+  [SMALL_STATE(15)] = 237,
+  [SMALL_STATE(16)] = 247,
+  [SMALL_STATE(17)] = 257,
+  [SMALL_STATE(18)] = 267,
+  [SMALL_STATE(19)] = 277,
+  [SMALL_STATE(20)] = 287,
+  [SMALL_STATE(21)] = 297,
+  [SMALL_STATE(22)] = 307,
+  [SMALL_STATE(23)] = 317,
+  [SMALL_STATE(24)] = 327,
+  [SMALL_STATE(25)] = 337,
+  [SMALL_STATE(26)] = 347,
+  [SMALL_STATE(27)] = 357,
+  [SMALL_STATE(28)] = 367,
+  [SMALL_STATE(29)] = 377,
+  [SMALL_STATE(30)] = 387,
+  [SMALL_STATE(31)] = 392,
+  [SMALL_STATE(32)] = 399,
+  [SMALL_STATE(33)] = 404,
+  [SMALL_STATE(34)] = 411,
+  [SMALL_STATE(35)] = 418,
+  [SMALL_STATE(36)] = 425,
+  [SMALL_STATE(37)] = 430,
+  [SMALL_STATE(38)] = 435,
+  [SMALL_STATE(39)] = 442,
+  [SMALL_STATE(40)] = 446,
+  [SMALL_STATE(41)] = 450,
+  [SMALL_STATE(42)] = 454,
 };
 
 static const TSParseActionEntry ts_parse_actions[] = {
@@ -912,66 +967,70 @@ static const TSParseActionEntry ts_parse_actions[] = {
   [1] = {.entry = {.count = 1, .reusable = false}}, RECOVER(),
   [3] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 0),
   [5] = {.entry = {.count = 1, .reusable = true}}, SHIFT(5),
-  [7] = {.entry = {.count = 1, .reusable = false}}, SHIFT(33),
-  [9] = {.entry = {.count = 1, .reusable = true}}, SHIFT(33),
-  [11] = {.entry = {.count = 1, .reusable = false}}, SHIFT(8),
+  [7] = {.entry = {.count = 1, .reusable = false}}, SHIFT(30),
+  [9] = {.entry = {.count = 1, .reusable = true}}, SHIFT(30),
+  [11] = {.entry = {.count = 1, .reusable = false}}, SHIFT(9),
   [13] = {.entry = {.count = 1, .reusable = false}}, SHIFT(23),
-  [15] = {.entry = {.count = 1, .reusable = false}}, SHIFT(15),
-  [17] = {.entry = {.count = 1, .reusable = false}}, SHIFT(10),
-  [19] = {.entry = {.count = 1, .reusable = false}}, SHIFT(37),
-  [21] = {.entry = {.count = 1, .reusable = false}}, SHIFT(28),
-  [23] = {.entry = {.count = 1, .reusable = true}}, SHIFT(28),
+  [15] = {.entry = {.count = 1, .reusable = false}}, SHIFT(26),
+  [17] = {.entry = {.count = 1, .reusable = false}}, SHIFT(14),
+  [19] = {.entry = {.count = 1, .reusable = false}}, SHIFT(41),
+  [21] = {.entry = {.count = 1, .reusable = false}}, SHIFT(37),
+  [23] = {.entry = {.count = 1, .reusable = true}}, SHIFT(37),
   [25] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2),
   [27] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_connection_repeat1, 2),
   [29] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(23),
-  [32] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(15),
-  [35] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(10),
-  [38] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(37),
+  [32] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(26),
+  [35] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(14),
+  [38] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_connection_repeat1, 2), SHIFT_REPEAT(41),
   [41] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_identifier, 1),
   [43] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_identifier, 1),
   [45] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 1),
-  [47] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2),
-  [49] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2), SHIFT_REPEAT(5),
-  [52] = {.entry = {.count = 1, .reusable = false}}, SHIFT(31),
-  [54] = {.entry = {.count = 1, .reusable = false}}, SHIFT(18),
-  [56] = {.entry = {.count = 1, .reusable = false}}, SHIFT(19),
-  [58] = {.entry = {.count = 1, .reusable = false}}, SHIFT(20),
-  [60] = {.entry = {.count = 1, .reusable = true}}, SHIFT(12),
-  [62] = {.entry = {.count = 1, .reusable = true}}, SHIFT(34),
-  [64] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_arrow, 1),
-  [66] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_arrow_repeat1, 2), SHIFT_REPEAT(11),
-  [69] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_arrow_repeat1, 2),
-  [71] = {.entry = {.count = 1, .reusable = true}}, SHIFT(11),
-  [73] = {.entry = {.count = 1, .reusable = true}}, SHIFT(36),
-  [75] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_arrow, 2),
-  [77] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_string_repeat1, 2), SHIFT_REPEAT(13),
-  [80] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_string_repeat1, 2),
-  [82] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_string_repeat1, 2), SHIFT_REPEAT(14),
-  [85] = {.entry = {.count = 1, .reusable = false}}, SHIFT(24),
-  [87] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_string_repeat1, 2), SHIFT_REPEAT(16),
-  [90] = {.entry = {.count = 1, .reusable = false}}, SHIFT(16),
-  [92] = {.entry = {.count = 1, .reusable = false}}, SHIFT(30),
-  [94] = {.entry = {.count = 1, .reusable = false}}, SHIFT(27),
-  [96] = {.entry = {.count = 1, .reusable = true}}, SHIFT(26),
-  [98] = {.entry = {.count = 1, .reusable = false}}, SHIFT(25),
-  [100] = {.entry = {.count = 1, .reusable = false}}, SHIFT(17),
-  [102] = {.entry = {.count = 1, .reusable = false}}, SHIFT(29),
-  [104] = {.entry = {.count = 1, .reusable = true}}, SHIFT(29),
-  [106] = {.entry = {.count = 1, .reusable = true}}, SHIFT(22),
-  [108] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_arrow_repeat1, 2), SHIFT_REPEAT(24),
-  [111] = {.entry = {.count = 1, .reusable = false}}, SHIFT(13),
-  [113] = {.entry = {.count = 1, .reusable = true}}, SHIFT(14),
-  [115] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string, 2),
-  [117] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string, 2),
-  [119] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_connection, 3),
-  [121] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_shape, 4),
-  [123] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string, 3),
-  [125] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string, 3),
-  [127] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_label, 1),
-  [129] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_label, 1),
-  [131] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_shape, 2),
-  [133] = {.entry = {.count = 1, .reusable = true}},  ACCEPT_INPUT(),
-  [135] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_arrow, 3),
+  [47] = {.entry = {.count = 1, .reusable = false}}, SHIFT(11),
+  [49] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2),
+  [51] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2), SHIFT_REPEAT(5),
+  [54] = {.entry = {.count = 1, .reusable = false}}, SHIFT(38),
+  [56] = {.entry = {.count = 1, .reusable = false}}, SHIFT(28),
+  [58] = {.entry = {.count = 1, .reusable = false}}, SHIFT(17),
+  [60] = {.entry = {.count = 1, .reusable = false}}, SHIFT(18),
+  [62] = {.entry = {.count = 1, .reusable = true}}, SHIFT(13),
+  [64] = {.entry = {.count = 1, .reusable = true}}, SHIFT(39),
+  [66] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_arrow, 2),
+  [68] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_arrow_repeat1, 2), SHIFT_REPEAT(13),
+  [71] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_arrow_repeat1, 2),
+  [73] = {.entry = {.count = 1, .reusable = true}}, SHIFT(12),
+  [75] = {.entry = {.count = 1, .reusable = true}}, SHIFT(40),
+  [77] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_arrow, 1),
+  [79] = {.entry = {.count = 1, .reusable = false}}, SHIFT(22),
+  [81] = {.entry = {.count = 1, .reusable = false}}, SHIFT(33),
+  [83] = {.entry = {.count = 1, .reusable = false}}, SHIFT(21),
+  [85] = {.entry = {.count = 1, .reusable = false}}, SHIFT(15),
+  [87] = {.entry = {.count = 1, .reusable = false}}, SHIFT(34),
+  [89] = {.entry = {.count = 1, .reusable = false}}, SHIFT(16),
+  [91] = {.entry = {.count = 1, .reusable = false}}, SHIFT(32),
+  [93] = {.entry = {.count = 1, .reusable = true}}, SHIFT(32),
+  [95] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_string_repeat1, 2), SHIFT_REPEAT(21),
+  [98] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_string_repeat1, 2),
+  [100] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_string_repeat1, 2), SHIFT_REPEAT(22),
+  [103] = {.entry = {.count = 1, .reusable = true}}, SHIFT(20),
+  [105] = {.entry = {.count = 1, .reusable = false}}, SHIFT(36),
+  [107] = {.entry = {.count = 1, .reusable = true}}, SHIFT(36),
+  [109] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_string_repeat1, 2), SHIFT_REPEAT(25),
+  [112] = {.entry = {.count = 1, .reusable = false}}, SHIFT(27),
+  [114] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_arrow_repeat1, 2), SHIFT_REPEAT(27),
+  [117] = {.entry = {.count = 1, .reusable = true}}, SHIFT(29),
+  [119] = {.entry = {.count = 1, .reusable = true}}, SHIFT(25),
+  [121] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_shape, 2),
+  [123] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_shape, 4),
+  [125] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string, 3),
+  [127] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string, 3),
+  [129] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string, 2),
+  [131] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string, 2),
+  [133] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_connection, 6),
+  [135] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_connection, 3),
+  [137] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_label, 1),
+  [139] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_label, 1),
+  [141] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_arrow, 3),
+  [143] = {.entry = {.count = 1, .reusable = true}},  ACCEPT_INPUT(),
 };
 
 #ifdef __cplusplus
diff --git a/test/corpus/connection.txt b/test/corpus/connection.txt
index ca02743..b7686dc 100644
--- a/test/corpus/connection.txt
+++ b/test/corpus/connection.txt
@@ -73,3 +73,27 @@ foo--bar->biz->baz
     (identifier)
   )
 )
+
+==================
+Descripted connection
+==================
+
+foo--bar: Question?
+bar->baz: Yes
+
+---
+
+(source_file
+  (connection
+    (identifier)
+    (arrow)
+    (identifier)
+    (label)
+  )
+  (connection
+    (identifier)
+    (arrow)
+    (identifier)
+    (label)
+  )
+)