About: http://webisa.webdatacommons.org/244931739

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	Laver played against what 3-4 countries versus the world and every country imaginable and Laver won his grand slams mainly on grass.
http://www.w3.org/ns/prov#wasQuotedFrom	tennis-warehouse.com