About: http://webisa.webdatacommons.org/155459948

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	The cross sectional shape of the retainer structure may be any of a variety shapes, including a circle, oval, squares, rectangles, polygonal or other closed shape.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr