What is the {book} for {editor} of {Stephen Hawking}
What is the title of a book by Stephen Hawking?
Name a book released by Stephen Hawking ?
SELECT DISTINCT ?y WHERE { ?y rdf:type ontology:book . ?y property:editor resource:Stephen_Hawking }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P98> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q17714> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q571> } 
 select distinct ?sbj where { ?sbj wdt:P98 wd:Q17714 . ?sbj wdt:P31 wd:Q571 } 