What is the {cation} for {conjugate base} of {water}
Is the conjugate base of water, cation?
 select distinct ?sbj where { ?sbj wdt:P4149 wd:Q283 . ?sbj wdt:P31 wd:Q326277 } 
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/P4149> . ?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/Q326277> } 
Is the conjugate base of water, cation?