anchor.diff:      | GROUPING
       | GROUPING_ID
       | HASH
  +    | INIT
       | IMPERSONATE
       | INSENSITIVE
       | INSERTED
  
positive.code:     | PRIOR
      | PRIVILEGES
      | PUBLIC
      | RANGE
      | RANK
      | RAW
  
negative.code: simple_id
      : ID
      | ABSOLUTE
      | ACTION
      | ACTIVE
      | ADDRESS
      | APPLY
  