What is the {medication} for {encodes} of {INS}
What medication is encoded INS?
 select distinct ?obj where { wd:Q21163221 wdt:P688 ?obj . ?obj wdt:P31 wd:Q12140 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q21163221> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P688> . ?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/Q12140> } 
What pharmaceutical is encoded INS?