query: embed.html#SELECT ?item ?itemLabel ?itemDescription ?value ?st ?ids ?sl
  WHERE
  {
    SERVICE bd:sample { ?item wdt:P7218 ?value. bd:serviceParam bd:sample.limit 42 }
    OPTIONAL { ?item wikibase:statements ?st ; wikibase:identifiers ?ids ; wikibase:sitelinks ?sl }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }