About: http://webisa.webdatacommons.org/145495307

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	Between them there is air, so I developed many kinds of furnaces to consolidate the porous pre-form into transparent glass. +<p>'''Izawa:''' </p>
http://www.w3.org/ns/prov#wasQuotedFrom	ieeeghn.org