wise folks that they are 
(ROOT (NP (NP (JJ wise) (NNS folks)) (SBAR (WHNP (WDT that)) (S (NP (PRP they)) (VP (VBP are))))))
(ROOT (NP (NP (JJ ) (NNS )) (SBAR (WHNP (WDT )) (S (NP (PRP )) (VP (VBP ))))))