About: http://webisa.webdatacommons.org/135102582

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	This can be easily combined with the same camera sensing touch distortion, if the light illuminating the screen for this purpose 1530 is also from a laser or other source of the same wavelength (assuming the filter is used).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com