About: http://webisa.webdatacommons.org/117229657

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	Thus, it should be understood that the control electrode 508 is not limited to a circular or rectangular ring around the anode 506, as shown in FIGS. 5A and 6, but may be in the shape of a square, triangle, or other ring shape.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com