About: http://webisa.webdatacommons.org/219750170

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	substance such as glass or plastic, with a lower index of refraction?
http://www.w3.org/ns/prov#wasQuotedFrom	lightandmatter.com