About: http://webisa.webdatacommons.org/430308752

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	FIG. 2F illustrates usage examples of a pen-shaped optical mouse at different incidence angles of light onto a reflection surface, for example, a general paper sheet such as a copier sheet or the surface of a desk, respectively.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr