About: http://webisa.webdatacommons.org/301340490

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 ruler is an instrument used in geometry, technical drawing and engineering to measure distances and to rule straight???
http://www.w3.org/ns/prov#wasQuotedFrom	appbrain.com