About: http://webisa.webdatacommons.org/185595997

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	People say that the grid is a very complicated thing, that it is not one grid; it is multiple grids, lots of different systems.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org