About: http://webisa.webdatacommons.org/219193547

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	These include physical contact, projectiles such as balls and pucks, and the quality of the playing field and equipment.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov