About: http://webisa.webdatacommons.org/101351162

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 chemicals, such as calcium hydroxide, may be included to help separate the hydrocarbons from the tailings.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com