query: embed.html#SELECT ?work ?workLabel (GROUP_CONCAT(DISTINCT ?xLabel ; separator=", ") as ?parts) WHERE {
    ?work wdt:P31 wd:Q571 ; wdt:P527 ?x .
    ?x wdt:P655 [] .
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". ?work rdfs:label ?workLabel . ?x rdfs:label ?xLabel . }
  }
  GROUP BY ?work ?workLabel