What is <subclass of> of <Populus> ?
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What is the subclass of Populus?
SELECT DISTINCT ?d WHERE { ?d rdf:type ontology:Populus }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject>  ?answer. ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P279> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q25356>. }
select distinct ?answer where { ?answer wdt:P279 wd:Q25356}
Populus alba Populus deltoides