About: http://webisa.webdatacommons.org/125576790

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	Modern rackets are already made of composite materials such as fiberglass and carbon fibre but before that development, Ash hardwood was the primary material for tennis rackets.
http://www.w3.org/ns/prov#wasQuotedFrom	sangetor.info