About: http://webisa.webdatacommons.org/365876152

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	Also relatively common is the Titmus Fly Stereotest, a greatly enlarged stereoscopic image of a fly used by optometrists and ophthalmologists to determine if patients, especially young children, have normal stereoscopic vision.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org