query: SELECT ?p ?pLabel ?c ?citemLabel ?cpropertyLabel
  {
    ?p p:P2302 ?st . ?st ps:P2302 wd:Q52558054 .
    ?p wikibase:propertyType wikibase:WikibaseItem .
    OPTIONAL { ?st pq:P2305 ?citem }
    OPTIONAL { ?st pq:P2306 ?cproperty }
    OPTIONAL { ?st pq:P6607 ?c }  
    FILTER NOT EXISTS { ?st pq:P9729 [] }
    FILTER NOT EXISTS { ?st pq:P6824 [] }  
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }  