<http://webisa.webdatacommons.org/90211909>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dmc.org> .
<http://webisa.webdatacommons.org/prov/112465229>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/90211909> .
<http://webisa.webdatacommons.org/90211909>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/90211909>	<http://www.w3.org/ns/prov#value>	"Knee replacement, also called arthroplasty, is a surgical procedure to resurface a knee damaged by arthritis." .