About: http://webisa.webdatacommons.org/262833509

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 lens should not be rubbed, for example, such as between the thumb and forefinger, since this may warp or scratch the lens.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com