query: SELECT ?item ?itemLabel ?HS_ID WHERE
  {
    ?item wdt:P1435 wd:Q219538 . 
    ?item wdt:P709 ?HS_ID .
    FILTER NOT EXISTS {?article schema:about ?item ;
    schema:isPartOf <https://en.wikipedia.org/> . }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }