What is <postsynaptic connection> of <rod cell> ?
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What is  in the postsynaptic connection of rod cell ?
SELECT DISTINCT ?q WHERE { resource:rod_cell property:postsynaptic_connection ?q }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q505544> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P926> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q505544 wdt:P926 ?answer}
retina bipolar cells retina horizontal cell