About: http://webisa.webdatacommons.org/182322939

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	Good question harry: the balls were an issue last year, as they played with one kind all the way through the clay stretch and then the French Open decided to use a completely different ball.
http://www.w3.org/ns/prov#wasQuotedFrom	tennis-x.com