query: SELECT ?description ?item (COUNT(?i) as ?ct) (SAMPLE(?i) as ?sample)
  {
      BIND( wd:Q13406463 as ?item )
      BIND( "Wikimedia list article"@en as ?description )
      ?i schema:description ?description .
      MINUS { ?i wdt:P31 ?item }
  } 
  GROUP BY ?description ?item