What is the {triangular number} for {opposite of} of {0}
Allow the triangular number which is inverse to 0?
Give the triangular number which is opposite to 0?
SELECT DISTINCT ?c WHERE { ?c property:opposite_of resource:zero . ?c rdf:type ontology:triangular_number }
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/P461> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q204> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q245102> } 
 select distinct ?sbj where { ?sbj wdt:P461 wd:Q204 . ?sbj wdt:P31 wd:Q245102 } 
zero