docs: public final BaseDescr andRestriction() throws RecognitionException {
  		BaseDescr result = null;
  
  
  		Token lop=null;
  		BaseDescr left =null;
  		AnnotationDescr args =null;
  		BaseDescr right =null;
  
  		try {
  			// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:406:3: (left= singleRestriction ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )* )
  			// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:406:5: left= singleRestriction ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )*
  			{
  			pushFollow(FOLLOW_singleRestriction_in_andRestriction1881);
  			left=singleRestriction();
  			state._fsp--;
  			if (state.failed) return result;
  			if ( state.backtracking==0 ) { if( buildDescr  ) { result = left; } }
  			// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:407:3: ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )*
  			loop42:
  			while (true) {
  				int alt42=2;
  				int LA42_0 = input.LA(1);
  				if ( (LA42_0==DOUBLE_AMPER) ) {
  					int LA42_9 = input.LA(2);
  					if ( (synpred10_DRL5Expressions()) ) {
  						alt42=1;
  					}
  
  				}
  
  				switch (alt42) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:407:5: ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction
  					{
  					lop=(Token)match(input,DOUBLE_AMPER,FOLLOW_DOUBLE_AMPER_in_andRestriction1901); if (state.failed) return result;
  					if ( state.backtracking==0 ) { if ( isNotEOF() ) helper.emit( Location.LOCATION_LHS_INSIDE_CONDITION_OPERATOR ); }
  					// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:409:13: (args= fullAnnotation[null] )?
  					int alt41=2;
  					int LA41_0 = input.LA(1);
  					if ( (LA41_0==AT) ) {
  						alt41=1;
  					}
  					switch (alt41) {
  						case 1 :
  							// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:409:13: args= fullAnnotation[null]
  							{
  							pushFollow(FOLLOW_fullAnnotation_in_andRestriction1922);
  							args=fullAnnotation(null);
  							state._fsp--;
  							if (state.failed) return result;
  							}
  							break;
  
  					}
  
  					pushFollow(FOLLOW_singleRestriction_in_andRestriction1927);
  					right=singleRestriction();
  					state._fsp--;
  					if (state.failed) return result;
  					if ( state.backtracking==0 ) { if( buildDescr  ) {
  					               ConstraintConnectiveDescr descr = ConstraintConnectiveDescr.newAnd();
  					               descr.addOrMerge( result );
  					               descr.addOrMerge( right );
  					               if ( args != null ) { descr.addAnnotation( args ); }
  					               result = descr;
  					           }
  					         }
  					}
  					break;
  
  				default :
  					break loop42;
  				}
  			}
  
  			}
  
  		}
  
  		catch (RecognitionException re) {
  		    throw re;
  		}
  
  		finally {
  			// do for sure before leaving
  		}
  		return result;
  	}