What is <volcano observatory> of <Haleakalā> ?
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Which is the volcano observatory for Haleakalā?
SELECT DISTINCT ?i WHERE { resource:Haleakalā property:volcano_observatory ?i }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q515719> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3815> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q515719 wdt:P3815 ?answer}
Hawaiian Volcano Observatory