About: http://webisa.webdatacommons.org/227727146

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	If you consider light as a practical thing allowing us something to to be seen, then you want the light to be reflected, e.g. by a book.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com