About: http://webisa.webdatacommons.org/27919929

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	0 by definition, as discussed.There is an exception to this analysis: where a maximal bounding point lies on the zero-line (??=0) such that the point exists but the associated gap does not (the bounding region becomes singular).
http://www.w3.org/ns/prov#wasQuotedFrom	opticsinfobase.org