anchor.diff:      ;
   
   rdfLiteral
  -    : string ( LANGTAG | ( REFERENCE iriRef ) )?
  +    : string (LANGTAG | (REFERENCE iriRef))?
       ;
   
   numericLiteral
  
positive.code: ARG_LIST;
  EXPRESSION_LIST;
  CONSTRUCT_TRIPLES;
  PROPERTY_LIST;
  COLLECTION;
  TRIPLE;
  SUBJECT;
  PREDICATE;
  OBJECT;
  
negative.code:     ;
     
  delete 	  
      : DELETE (deleteData | deleteWhere)
      ;
  
  deleteData
  