% Restoring file /usr/local/lib/Yap/startup.yss

...final principal set...
(pAcme,keyid,y) 
(pCoyote,keyid,y) 
(pJackrabbit,keyid,y) 
(pRoadrunner,keyid,y) 

...final policy attribute set...
pAcme.friendof(pRoadrunner) <- pJackrabbit
pAcme.preferred_customer <- pAcme.friendof(pRoadrunner)
pAcme.preferred_customer <- pCoyote

===bad============ Acme.friendOf(Roadrunner) <- Coyote
YAP query failed

===good============ Acme.friendOf(Roadrunner) <- Jackrabbit
YAP query succeed
pAcme.friendof(pRoadrunner) <- pJackrabbit

===good============ Acme.preferred_customer <- Jackrabbit
YAP query succeed
pAcme.preferred_customer <- pAcme.friendof(pRoadrunner)
pAcme.friendof(pRoadrunner) <- pJackrabbit

===good============ Acme.preferred_customer <- Coyote
YAP query succeed
pAcme.preferred_customer <- pCoyote

===bad============ Acme.preferred_customer <- badcoyote
fail, query's call got bad aspect names ..