About: http://webisa.webdatacommons.org/75760350

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	The frame is generally symmetrical about a nasal region 10' and a pair of lens units are attached by screws or other means (not shown) on either side of the nasal region 10'.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca