About: http://webisa.webdatacommons.org/453669399

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	A ring of focal points including focal points 159 and 152 may form a circle, ring or other shape lying in a focal plane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com