About: http://webisa.webdatacommons.org/224882149

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	The playing elements are of a material such as plastic or wood, and are opaque so that the letters or symbols marked on them are not visible from the unmarked side 18.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com