About: http://webisa.webdatacommons.org/417473484

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	In operation an implement such as a pen or pencil point can be used to apply a small force in the direction indicated by an arrow 129 in FIG. 18.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com