About: http://webisa.webdatacommons.org/201055740

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	3 This ball is pressurised and is an additional ball specified for high altitude play above 1,219 m (4,000 feet) above sea level only.
http://www.w3.org/ns/prov#wasQuotedFrom	itftennis.com