What is the {chemical compound} for {conjugate base} of {ammonia}
What chemical compound is the ammonia conjugate base?
The conjugate base of ammonia is what chemical compound?
SELECT DISTINCT ?a WHERE { ?a rdf:type ontology:chemical_compound . resource:Ammonia property:conjugate_base ?a }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q4087> . ?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> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q11173> } 
 select distinct ?obj where { wd:Q4087 wdt:P4149 ?obj . ?obj wdt:P31 wd:Q11173 } 