this would be a worthy substitute for naughty children 's stockings 
(ROOT (S (NP (DT this)) (VP (MD would) (VP (VB be) (NP (NP (DT a) (JJ worthy) (NN substitute)) (PP (IN for) (NP (NP (JJ naughty) (NNS children) (POS 's)) (NNS stockings))))))))
(ROOT (S (NP (DT )) (VP (MD ) (VP (VB ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NP (JJ ) (NNS ) (POS )) (NNS ))))))))