About: http://webisa.webdatacommons.org/435435174

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	If desired, the laser medium can have a cross-sectional shape that is non-circular, such as a square, rectangular, or bevelled shape, or a partially circular shape with one or more flat areas or surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com