




The function returns non-
nil
 if and only if 
instantiation1
 is preferred to 
instantiation2
 by the conflict resolution tactic 
-order
, otherwise 
nil
. The function is intended to be used primarily by including it in the conflict resolution strategy for a context.
(defcontext my-context1 :strategy (-order))
(defcontext my-context2 :strategy (priority -order))