What is the {citrate anion} for {conjugate acid} of {citric acid}
For acidity of citric acid, what is the citrate anion?
What is the citrate anion for the acidity of citric acid?
SELECT DISTINCT ?l WHERE { ?l property:conjugate_acid resource:citric_acid . ?l rdf:type ontology:citrate_anion }
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/Q159683> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q55502846> } 
 select distinct ?sbj where { ?sbj wdt:P4147 wd:Q159683 . ?sbj wdt:P31 wd:Q55502846 } 