About: http://webisa.webdatacommons.org/181404263

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	Preferably, the gap formed is a generally circular recess defined by a planar surface 126' and concave surface 127' on the crystal 126 and cover plate 127, respectively.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au