About: http://webisa.webdatacommons.org/302279804

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	The reservoir may be formed of a porous material, such as nylon, a suitable cloth-filled phenolic, a porous graphite, a ceramic, a bearing bronze, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com