About: http://webisa.webdatacommons.org/18987681

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 the differential changes to the light in the paths 12 and 13 is carried out by, or in response to, a desired signal, this apportioning results in modulation at one or other port.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com