About: http://webisa.webdatacommons.org/5974575

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	One eye is for example 6/12 uncorrectable to the minimum 6/9, but both eyes are still 6/6?
http://www.w3.org/ns/prov#wasQuotedFrom	pprune.org