query: #title: Check id
  # Complex constraint from [[Property talk:P1447]]
  # Rapid check id
  SELECT ?item ?id ?prefix ?sufix ?sub {
  	?item wdt:P1447 ?id.
    BIND (STRBEFORE(?id, "/") AS ?prefix).
    BIND (STRAFTER(?id, "-") AS ?sufix).
    BIND (SUBSTR(?sufix, 1, 2) AS ?sub).
    FILTER (STRLEN(?prefix) = 2).
    FILTER (CONTAINS( ?sufix, ?prefix ) = false).
    FILTER (?sub = ?prefix).
    FILTER (?item NOT IN (wd:Q2553574, wd:Q58640718))
  }