About: http://webisa.webdatacommons.org/202374282

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	Pigs are tools that move through a pipeline to check for problems such as corrosion.
http://www.w3.org/ns/prov#wasQuotedFrom	petroleumnews.com