About: http://webisa.webdatacommons.org/97549946

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	difficult is a running clock that determines whether it is night or day
http://www.w3.org/ns/prov#wasQuotedFrom	gamasutra.com