What is <presynaptic connection> of <rod cell> ?
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What is the presynaptic connection between rod cells?
SELECT DISTINCT ?k WHERE { ?k property:presynaptic_connection resource:rod_cell }
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/P925> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q505544>. }
select distinct ?answer where { ?answer wdt:P925 wd:Q505544}
retina bipolar cells