anchor.diff:  graph which contains invalid statements.
   +
   [[query_for_a_subject]]
  -.Listing 12. A Query for a Subject
  +.Listing 11. A Query for a Subject
   ....
   SELECT
     ?s
  
positive.code: Cool URI Score is a percentage of the satisfied rules.
  * Linked Data Rule
  +
  However the endpoints are preferred to be satisfied with the four rules of
  linked data<<2>> listed below, we ignore the first of them.
  Because the first rule is natural for RDF and it is meaningless for umakadata score.
  +
  . Use URIs as names for things
  
negative.code: ....
  +
  [[query_for_see_also]]
  .Listing 13. A Query for a See Also Statement
  ....
  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
  SELECT
  