What is <source of energy> of <carriage> ?
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Carriage source of power is what?
SELECT DISTINCT ?i WHERE { resource:carriage property:source_of_energy ?i }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q235356> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P618> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q235356 wdt:P618 ?answer}
horse