About: http://webisa.webdatacommons.org/216687933

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	Three accelerometers 36 may be used, as illustrated in FIG. 1, so that collectively they provide data indicative of motion, including speed and direction, of the writing instrument 12 in all three planes of three dimensional space.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca