query: SELECT ?item ?itemLabel 
  WHERE 
  {
    # Item Property Value
    ?item wdt:P31 wd:Q16521. # get all taxon of wikidata
    ?item wdt:P105 wd:Q7432. # who are species
    ?item wdt:P171 wd:Q216110. # whose parent taxon is russula
    ?item wdt:P8707 []. # whose found in artsnavnebasen
    SERVICE wikibase:label { bd:serviceParam wikibase:language "nb". }
  }