shows off a lot of stamina and vitality , 
(ROOT (S (VP (VBZ shows) (PRT (RP off)) (NP (NP (DT a) (NN lot)) (PP (IN of) (NP (NN stamina) (CC and) (NN vitality))))) (, ,)))
(ROOT (S (VP (VBZ ) (PRT (RP )) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ) (CC ) (NN ))))) (, )))