About: http://webisa.webdatacommons.org/58356354

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	Furthermore, there is a slightly elusive difference between Ai and B: it seems that A1 and A2 are directly involved in creating new A1 and A2 entities, while B has only an indirect effect on the formation of new Bs.
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com