coal is n't as easy to come by as it used to be and this would be a worthy substitute for naughty children 's stockings 
(ROOT (S (S (NP (NN coal)) (VP (VBZ is) (RB n't) (ADJP (ADJP (RB as) (JJ easy) (SBAR (S (VP (TO to) (VP (VB come) (PP (IN by))))))) (SBAR (IN as) (S (NP (PRP it)) (VP (VBD used) (S (VP (TO to) (VP (VB be)))))))))) (CC and) (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 (S (NP (NN )) (VP (VBZ ) (RB ) (ADJP (ADJP (RB ) (JJ ) (SBAR (S (VP (TO ) (VP (VB ) (PP (IN ))))))) (SBAR (IN ) (S (NP (PRP )) (VP (VBD ) (S (VP (TO ) (VP (VB )))))))))) (CC ) (S (NP (DT )) (VP (MD ) (VP (VB ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NP (JJ ) (NNS ) (POS )) (NNS )))))))))