What is the {currency} for {currency} of {Hong Kong}
What is the currency in Hong Kong?
What type of money do they use in Hong Kong?
SELECT DISTINCT ?r WHERE { ?r rdf:type ontology:currency . resource:Hong_Kong property:currency ?r }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q8646> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P38> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q8142> } 
 select distinct ?obj where { wd:Q8646 wdt:P38 ?obj . ?obj wdt:P31 wd:Q8142 } 
Hong Kong dollar