About: http://webisa.webdatacommons.org/324943456

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, bumps, ridges, or other surface features can be provided, and/or a frictional material such as rubber can be included on the surface of the roller.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com