What is <Ustream username> of <National Aeronautics and Space Administration> ?
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Which is the Ustream username for National Aeronautics and Space Administration?
SELECT DISTINCT ?f WHERE { resource:NASA property:Ustream_username ?f }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q23548> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4017> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q23548 wdt:P4017 ?answer}