What is <category's main topic> of <Shinkansen> ?
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Which is the category's main topic for Shinkansen?
SELECT DISTINCT ?c WHERE { ?c property:category's_main_topic resource:Shinkansen }
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/P301> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q164338>. }
select distinct ?answer where { ?answer wdt:P301 wd:Q164338}
Category:Shinkansen