What is <mean lifetime> of <red blood cell> ?
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Which is the mean lifetime for red blood cell?
SELECT DISTINCT ?h WHERE { resource:red_blood_cell property:mean_lifetime ?h }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q37187> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2645> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q37187 wdt:P2645 ?answer}