About: http://webisa.webdatacommons.org/311273590

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	Then Eb = ??b/3 0 , where b is a vector pointing from the center of the hole.
http://www.w3.org/ns/prov#wasQuotedFrom	issuu.com