About: http://webisa.webdatacommons.org/127335177

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	Basically Nadal is unbeatable on clay - easily the #1 if only clay was taken into account, but tennis is a sport played on several surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	menstennisforums.com