What is <author of foreword> of <A Brief History of Time> ?
[]
Who is the author of foreword of A Brief History of Time?
SELECT DISTINCT ?k WHERE { resource:A_Brief_History_of_Time property:author_of_foreword ?k }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q471726> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2679> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q471726 wdt:P2679 ?answer}
Carl Sagan