About: http://webisa.webdatacommons.org/412226822

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	Charcoals made from vegetable material such as wood and coal, contain about 90% carbon, whereas bone charcoal contains about 11% carbon, 9% calcium carbonate, and 78% calcium phosphate.
http://www.w3.org/ns/prov#wasQuotedFrom	amazinghealth.com