What is the {polyatomic anion} for {conjugate acid} of {water}
What is the polyatomic anion for the conjugate acid of water?
 select distinct ?sbj where { ?sbj wdt:P4147 wd:Q283 . ?sbj wdt:P31 wd:Q55511438 } 
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/P4147> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q283> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q55511438> } 
For the conjugate acid of water, what's the polyatomic anion?