About: http://webisa.webdatacommons.org/249153399

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http://www.w3.org/ns/prov#value	Bouncing balls were originally made of natural rubber, however now bouncing balls can be made of plastics and other polymers or even treated leather.
http://www.w3.org/ns/prov#wasQuotedFrom	madaboutscience.com.au