About: http://webisa.webdatacommons.org/292575225

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	balls, such as from about 20 to about 180 balls, in enhancing a user's eye tracking of a ball to a bat, racket, or glove and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com