About: http://webisa.webdatacommons.org/193023624

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	The key idea though being that each side of the paddle could have very different properties, so which side was used is an important factor in predicting the trajectory of the ball.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com