About: http://webisa.webdatacommons.org/119576640

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	However, the invention is not limited to the depicted embodiment, and the flaps 40 and 41 may be formed in other shapes, such as triangles, rectangles, or trapezoids.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com