docs: public final DSLMapParser.key_section_return key_section() throws RecognitionException {
  		DSLMapParser.key_section_return retval = new DSLMapParser.key_section_return();
  		retval.start = input.LT(1);
  
  		Object root_0 = null;
  
  		ParserRuleReturnScope ks =null;
  
  		RewriteRuleSubtreeStream stream_key_sentence=new RewriteRuleSubtreeStream(adaptor,"rule key_sentence");
  
  		try {
  			// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:150:5: ( (ks= key_sentence )+ -> ^( VT_ENTRY_KEY ( key_sentence )+ ) )
  			// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:150:7: (ks= key_sentence )+
  			{
  			// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:150:9: (ks= key_sentence )+
  			int cnt8=0;
  			loop8:
  			while (true) {
  				int alt8=2;
  				int LA8_0 = input.LA(1);
  				if ( (LA8_0==COLON||(LA8_0 >= LEFT_CURLY && LA8_0 <= LITERAL)||LA8_0==RIGHT_SQUARE) ) {
  					alt8=1;
  				}
  
  				switch (alt8) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:150:9: ks= key_sentence
  					{
  					pushFollow(FOLLOW_key_sentence_in_key_section568);
  					ks=key_sentence();
  					state._fsp--;
  					if (state.failed) return retval;
  					if ( state.backtracking==0 ) stream_key_sentence.add(ks.getTree());
  					}
  					break;
  
  				default :
  					if ( cnt8 >= 1 ) break loop8;
  					if (state.backtracking>0) {state.failed=true; return retval;}
  					EarlyExitException eee = new EarlyExitException(8, input);
  					throw eee;
  				}
  				cnt8++;
  			}
  
  			// AST REWRITE
  			// elements: key_sentence
  			// 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();
  			// 151:5: -> ^( VT_ENTRY_KEY ( key_sentence )+ )
  			{
  				// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:151:8: ^( VT_ENTRY_KEY ( key_sentence )+ )
  				{
  				Object root_1 = (Object)adaptor.nil();
  				root_1 = (Object)adaptor.becomeRoot((Object)adaptor.create(VT_ENTRY_KEY, "VT_ENTRY_KEY"), root_1);
  				if ( !(stream_key_sentence.hasNext()) ) {
  					throw new RewriteEarlyExitException();
  				}
  				while ( stream_key_sentence.hasNext() ) {
  					adaptor.addChild(root_1, stream_key_sentence.nextTree());
  				}
  				stream_key_sentence.reset();
  
  				adaptor.addChild(root_0, root_1);
  				}
  
  			}
  
  
  			retval.tree = root_0;
  			}
  
  			}
  
  			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;
  	}