About: http://webisa.webdatacommons.org/53718292

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	For example, cement compositions are used in primary cementing operations whereby pipe strings such as casings and liners may be cemented in well bores.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es