chem-del-goldbook.rq

SELECT ?goodItem ?goodItemLabel ?badItem ?badItemLabel ?doi ?goldbook WHERE {
  ?goodItem wdt:P4732 ?goldbook
  bind(concat("10.1351/GOLDBOOK.",?goldbook) as ?doi)
  ?badItem wdt:P356 ?doi
  FILTER(?goodItem != ?badItem).
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}