anchor.diff:  
   @header
   {
  -import java.util.ArrayList;
  -import java.util.Map;
  -import java.util.HashMap;
   import java.io.*;
   }
   
  
positive.code:                                                                   if ( $INSTANCE != null )
                                                                        args[4] = $INSTANCE.text;
                                                                    if ( $relationshipReference.ref != null )
                                                                        args[5] = $relationshipReference.ref.get(1);
                                                                    populate( "operation", args );
                                                              }
                                     parameterList
  
negative.code:                               : ^( RELATIONSHIP_SPEC
                                     relationshipReference    
                                                              {
                                                                  s[0] = $relationshipReference.ref[0];
                                                                  s[1] = $relationshipReference.ref[1];
                                                              }
                                     ( objOrRole
                                                              {
  