About: http://webisa.webdatacommons.org/128359070

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	Apart from different ones, for example casement windows, double hung and sash, but additionally, there are a wide choice of materials from hard or soft wood to PVC, aluminium and more.
http://www.w3.org/ns/prov#wasQuotedFrom	umn.edu