What is <contains> of <puzzle> ?
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What are the contents of the puzzle?
SELECT DISTINCT ?w WHERE { ?w property:contains resource:puzzle }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject>  ?answer. ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4330> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q13698>. }
select distinct ?answer where { ?answer wdt:P4330 wd:Q13698}
puzzle book