About: http://webisa.webdatacommons.org/2790289

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	Tubular Daylighting Devices cost considerably less than other daylighting options, such as windows and skylights, including both product and installation costs.
http://www.w3.org/ns/prov#wasQuotedFrom	gbenergy.com