About: http://webisa.webdatacommons.org/425005215

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	Protrusions 3 may optionally take the form of male-shaped pegs, which may further be formed of any variety of shapes, including but not limited to rounded, square or other polygonal forms.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com