About: http://webisa.webdatacommons.org/395845768

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 size and position of the ROI is determined from dimensions given in the valve drawing or specification, size and position offsets previously stored in a database, or other suitable source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com