notChosenPattern.addConstraint( getBoundVariableConstraint( notChosenPattern,
"guestName",
leftGuestNameDeclaration,
"==" ) );
notChosenPattern.addConstraint( getBoundVariableConstraint( notChosenPattern,
"hobby",
rightGuestHobbyDeclaration,
"==" ) );
final GroupElement notChosen = GroupElementFactory.newNotInstance();