About: http://webisa.webdatacommons.org/318999008

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	Osteoarthritis is a degenerative joint disease caused by excess wear and tear of cartilage that cushions the knee.
http://www.w3.org/ns/prov#wasQuotedFrom	knee1.com