About: http://webisa.webdatacommons.org/38438734

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	The label says it is third-party purity tested to ensure PCBs, dioxins, mercury, lead and other contaminants are below detectable limits.
http://www.w3.org/ns/prov#wasQuotedFrom	paleohacks.com