About: http://webisa.webdatacommons.org/395556871

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	They can also be found in substances such as crude oil, coal, coal tar pitch, creosote, road and roofing tar.
http://www.w3.org/ns/prov#wasQuotedFrom	yale.edu