About: http://webisa.webdatacommons.org/178839734

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	A heme or haem is a prosthetic group that consists of an iron atom contained in the center of a large heterocyclic organic ring called a porphyrin.
http://www.w3.org/ns/prov#wasQuotedFrom	raysahelian.com