About: http://webisa.webdatacommons.org/371789208

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	ptics generally for such things as light perception and difference in speed of colours slowed down by air and water and colour mixing and pigmentat
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com