About: http://webisa.webdatacommons.org/21679062

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	Those issues seem to me to be somewhat individual, while others would seem to be universal, such as being balanced, having a level, straight, smooth stroke,... pausing before the last forward stroke, for me at the back of the stroke.
http://www.w3.org/ns/prov#wasQuotedFrom	billiardsdigest.com