About: http://webisa.webdatacommons.org/331038944

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	Security issues such as authentication and player reluctance to memorize complicated player tracking numbers or other cumbersome identifying information are a limitation to implementing prior art card-less player tracking systems.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com