What is <length> of <Green River> ?
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Which is the length of the Green River?
SELECT DISTINCT ?u WHERE { resource:Green_River property:length ?u }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q952429> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2043> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q952429 wdt:P2043 ?answer}
1175