About: http://webisa.webdatacommons.org/277996713

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	Letting m=2n, where n is a positive integer, the number of optical elements needed for forming the optical splitter 12 and the optical coupler 15 is 2???(2n -1)=2n+1 -2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com