About: http://webisa.webdatacommons.org/146907572

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 main goal of cataract extraction is to improve visual functioning???that is, the ability to perform activities that require eyesight, such as reading, walking without falls, and working on a computer.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com