What is <CGNDB Unique ID> of <Saskatchewan River> ?
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Tell me the CGNDB Unique ID of the Saskatchewan River?
SELECT DISTINCT ?a WHERE { resource:Saskatchewan_River property:CGNDB_Unique_ID ?a }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q3047> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P821> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q3047 wdt:P821 ?answer}