query: #title: P735 value should have P282
  # Complex constraint from [[Property talk:P7338]]
  # given name item should have [[Property:P282|writing system&#32;<small dir="ltr">(P282)</small>]]
  SELECT DISTINCT ?item ?itemLabel 
  {
  	?prop p:P735 [ pq:P7338 ?ro; ps:P735 ?item ]
  	MINUS { ?item p:P282 [] }
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }  
  }
  ORDER BY ?itemLabel