About: http://webisa.webdatacommons.org/150907567

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	It is like the old question of when a tree falls in the forest and no one is around, does it make a sound :lol: On some pieces of black glass, the glass is too thick even at the edges for light to penetrate.
http://www.w3.org/ns/prov#wasQuotedFrom	glassmessages.com