About: http://webisa.webdatacommons.org/433679512

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	From the above, it was known that there was a distance, at which the luminance difference disappeared, between d2 =0-1 mm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca