About: http://webisa.webdatacommons.org/229505745

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	But due to earthquakes and other natural disasters that fracture rigid pipe, in the 1980s the Japanese developed a more robust flexible piping system.
http://www.w3.org/ns/prov#wasQuotedFrom	csstfacts.org