About: http://webisa.webdatacommons.org/261432903

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	Going back to Rod Laver (1960s) and Don Budge (1930s), we can find Grand Slam winners, but tennis was a different game then and I???m not one to comment on the evolution.
http://www.w3.org/ns/prov#wasQuotedFrom	bronxbanterblog.com