What is <maritime identification digits> of <Tonga> ?
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Which is the maritime identification digits of Tonga?
SELECT DISTINCT ?y WHERE { resource:Tonga property:maritime_identification_digits ?y }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q678> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2979> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q678 wdt:P2979 ?answer}