About: http://webisa.webdatacommons.org/359124706

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	An annulus or disk 30 preferably formed of a light-weight, rigid material such as aluminum, magnesium-aluminum alloy or the like is rotatably mounted on the frame 32.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com