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      1 grammar t053heteroTP14;
      2 options {
      3     language=JavaScript;
      4     output=AST;
      5     tokenVocab=t053heteroT14;
      6 }
      7 @header {
      8 function V() {
      9     V.superclass.constructor.apply(this, arguments);
     10 };
     11 org.antlr.lang.extend(V, org.antlr.runtime.tree.CommonTree, {
     12     toString: function() {
     13         return this.getText() + "<V>";
     14     }
     15 });
     16 
     17 function W() {
     18     W.superclass.constructor.apply(this, arguments);
     19 };
     20 org.antlr.lang.extend(W, org.antlr.runtime.tree.CommonTree, {
     21     toString: function() {
     22         return this.getText() + "<W>";
     23     }
     24 });
     25 }
     26 a : ID INT -> ^(INT<V> ID<W>)
     27   ;
     28 
     29