About: http://webisa.webdatacommons.org/314416582

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	In addition to regulating a vacuum, the presence of a sweep of inert gas, such as nitrogen, aids in removing the volatile chemical compounds from the contaminated soil.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com