About: http://webisa.webdatacommons.org/261091862

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	To document all substances in work areas, including all chemicals and products except medicines, foodstuffs and stationery materials such as paper, pens and marking inks.
http://www.w3.org/ns/prov#wasQuotedFrom	drillingcontractor.org