query: embed.html##defaultView:Tree
  SELECT ?x ?xLabel ?y ?yLabel
  WHERE 
  {
    ?x wdt:P276 wd:Q666063 ;
       wdt:P31/wdt:P279* wd:Q2668072 .
    
    OPTIONAL { ?y wdt:P361 ?x . }
    OPTIONAL { ?y wdt:P1343 ?x . }
             
      
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
    