About: http://webisa.webdatacommons.org/288920259

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	Proppant is a material, such as grains of sand, ceramic, or other particulates, that prevent the fractures from closing when the injection is stopped.
http://www.w3.org/ns/prov#wasQuotedFrom	oilfracking.com