docs: public final DSLMapParser.value_sentence_return value_sentence() throws RecognitionException {
  		DSLMapParser.value_sentence_return retval = new DSLMapParser.value_sentence_return();
  		retval.start = input.LT(1);
  
  		Object root_0 = null;
  
  		ParserRuleReturnScope vc =null;
  		ParserRuleReturnScope variable_reference19 =null;
  
  		RewriteRuleSubtreeStream stream_value_chunk=new RewriteRuleSubtreeStream(adaptor,"rule value_chunk");
  
  
  		        String text = "";
  
  		try {
  			// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:176:5: ( variable_reference |vc= value_chunk -> VT_LITERAL[$vc.start, text] )
  			int alt12=2;
  			int LA12_0 = input.LA(1);
  			if ( (LA12_0==LEFT_CURLY) ) {
  				alt12=1;
  			}
  			else if ( ((LA12_0 >= COLON && LA12_0 <= DOT)||LA12_0==EQUALS||(LA12_0 >= LEFT_SQUARE && LA12_0 <= LITERAL)||LA12_0==RIGHT_SQUARE) ) {
  				alt12=2;
  			}
  
  			else {
  				if (state.backtracking>0) {state.failed=true; return retval;}
  				NoViableAltException nvae =
  					new NoViableAltException("", 12, 0, input);
  				throw nvae;
  			}
  
  			switch (alt12) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:176:7: variable_reference
  					{
  					root_0 = (Object)adaptor.nil();
  
  
  					pushFollow(FOLLOW_variable_reference_in_value_sentence703);
  					variable_reference19=variable_reference();
  					state._fsp--;
  					if (state.failed) return retval;
  					if ( state.backtracking==0 ) adaptor.addChild(root_0, variable_reference19.getTree());
  
  					}
  					break;
  				case 2 :
  					// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:177:7: vc= value_chunk
  					{
  					pushFollow(FOLLOW_value_chunk_in_value_sentence713);
  					vc=value_chunk();
  					state._fsp--;
  					if (state.failed) return retval;
  					if ( state.backtracking==0 ) stream_value_chunk.add(vc.getTree());
  					if ( state.backtracking==0 ) { text = (vc!=null?input.toString(vc.start,vc.stop):null); }
  					// AST REWRITE
  					// elements: 
  					// token labels: 
  					// rule labels: retval
  					// token list labels: 
  					// rule list labels: 
  					// wildcard labels: 
  					if ( state.backtracking==0 ) {
  					retval.tree = root_0;
  					RewriteRuleSubtreeStream stream_retval=new RewriteRuleSubtreeStream(adaptor,"rule retval",retval!=null?retval.getTree():null);
  
  					root_0 = (Object)adaptor.nil();
  					// 178:5: -> VT_LITERAL[$vc.start, text]
  					{
  						adaptor.addChild(root_0, (Object)adaptor.create(VT_LITERAL, (vc!=null?(vc.start):null), text));
  					}
  
  
  					retval.tree = root_0;
  					}
  
  					}
  					break;
  
  			}
  			retval.stop = input.LT(-1);
  
  			if ( state.backtracking==0 ) {
  			retval.tree = (Object)adaptor.rulePostProcessing(root_0);
  			adaptor.setTokenBoundaries(retval.tree, retval.start, retval.stop);
  			}
  		}
  		catch (RecognitionException re) {
  			reportError(re);
  			recover(input,re);
  			retval.tree = (Object)adaptor.errorNode(input, retval.start, input.LT(-1), re);
  		}
  		finally {
  			// do for sure before leaving
  		}
  		return retval;
  	}