About: http://webisa.webdatacommons.org/293378336

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 one embodiment, the shoe box 3200 is colored black or other substantially light absorbing color and the emitter pad 3000 and detector pad 3100 are each colored white or other substantially light reflecting color.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca