About: http://webisa.webdatacommons.org/193419496

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	They are mostly made from glass, though some are plastic, clay, porcelain or stone such as agate.
http://www.w3.org/ns/prov#wasQuotedFrom	nakedcapitalism.com