About: http://webisa.webdatacommons.org/232164304

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	To couple an optical fibre end to an optical element, such as a lens, several positioning variables exist: the spacing between the elements and the coupling point relative to the optical axis are two of them.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com