About: http://webisa.webdatacommons.org/228133836

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	Any system of symbols can be utilized a long as there is one symbol, including a blank symbol, corresponding to each stop position on each reel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk