About: http://webisa.webdatacommons.org/268806409

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	And that is because of an adaptive reason: the human need to synthesize normally vitamin D using solar energy at the skin (it can also be ingested from fish mostly but it is not as reliable in the long run).
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com