About: http://webisa.webdatacommons.org/91694394

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	Literally translated, a pig is an animal, but in the oil service industry, a pig is a special cylindrical device which travels down a pipeline under pressure to scrape/clean the walls of a pipeline.
http://www.w3.org/ns/prov#wasQuotedFrom	usingenglish.com