What is the {country} for {head of state} of {Moon Jae-in}
Of what country is Moon Jae-in the leader?
 select distinct ?sbj where { ?sbj wdt:P35 wd:Q21001 . ?sbj wdt:P31 wd:Q6256 } 
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P35> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q21001> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q6256> } 
Which country is the leader of Moon Jae?