About: http://webisa.webdatacommons.org/185245020

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	Sky darkening works best when the sun is to your right or your left (of shooting position) and not at all when the sun is behind or in front of you.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com