About: http://webisa.webdatacommons.org/355900100

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 straightedge is a tool which can be used for drawing straight lines, or segments thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	mathforum.org