About: http://webisa.webdatacommons.org/221769512

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	However, such injection of chemicals is expensive and blockages can still form in some cases, particularly if a pipeline is shut down causing the fluid temperature to drop.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com