WhenVerb? ::= At | During | In | On | When | While | For | To | Whenever | Until SubTiming? ::= " start of " | " end of " | " interruption of " Optional_SubTiming? ::= __NOTHING | SubTiming? TimingSynonym? ::= Phase | Stage | Turn | Epoch | Priority | Action | Strategy | Attack | Resolution | Hunt | Preparation
ChooseWhen? ::= WhenVerb? optional_ChooseWhoseOwnership? Optional_SubTiming? TimingSynonym? fromplace ::= " from " ChooseWhoseOwnership? Places | " from the " Places toplace ::= " to " ChooseWhoseOwnership? Places | " to the " Places