About: http://webisa.webdatacommons.org/209376409

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	Typically, its decay rate is proportional to 1/d4, in which d is a desired observing distance.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com