(loc-0 loc-1 loc-2 cons)
(loc-0 loc-1 loc-2 cons)
(fb-2:loc-0 fb-2:loc-1 loc-2 cons)
(loc-0 loc-1 loc-2 cons)
(fb-2:loc-0 fb-2:loc-1 loc-2 cons)
(fb-1:loc-0 loc-1 loc-2 cons)