About: http://webisa.webdatacommons.org/308727245

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	In general, except in special cases, the purity of window glass for use in buildings should be limited to 14%, which is shown in curve B of FIG. 1.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com