About: http://webisa.webdatacommons.org/119493255

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	So the only rule that seems to apply is, a raid is an encounter that requires/is designed for 2x (or more) the amount of players that you can fit into a single group.
http://www.w3.org/ns/prov#wasQuotedFrom	mmo-champion.com