About: http://webisa.webdatacommons.org/149278307

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 the art of washing, gravel packing, and cementing wells, the tools and apparatus employed include tools or devices such as packers, port collars, bypass and bridging tools and the like, the relationship and function of
http://www.w3.org/ns/prov#wasQuotedFrom	google.com