About: http://webisa.webdatacommons.org/288677290

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	Historically, few sources have been available to efficiently generate THz radiation; however, several recent technological advances have resulted in the unprecedented development of many new types of THz sources and components.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com