What is <antiparticle> of <photon> ?
[]
Which {antiparticle} in a{photon} ?
SELECT DISTINCT ?x WHERE { ?x property:antiparticle resource:photon }
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/P2152> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q3198>. }
select distinct ?answer where { ?answer wdt:P2152 wd:Q3198}
photon