query: SELECT DISTINCT ?item ?status
  WHERE 
  { ?item wdt:P31/wdt:P279* wd:Q16917; wdt:P17 wd:Q967
  OPTIONAL { ?item p:P31/ps:P31 wd:Q64578911 . BIND(wd:Q64578911 as ?status1) } BIND(COALESCE(?status1,wd:Q64624840) as ?status)
  }