What is <metallicity> of <Messier 13> ?
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Which is the metallicity for Messier 13?
SELECT DISTINCT ?o WHERE { resource:Messier_13 property:metallicity ?o }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q11312> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2227> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q11312 wdt:P2227 ?answer}
-1.61