About: http://webisa.webdatacommons.org/312356736

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	A thumb rest 148 is disposed at the proximal end of frame 146, which is shown in the figure as a button, but which may also be configured as a ring or other structure to which thumb pressure may be applied.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com