a mechanical action-comedy whose seeming purpose is to market the charismatic jackie chan to even younger audiences 
(ROOT (NP (NP (DT a) (JJ mechanical) (NN action) (HYPH -) (NN comedy)) (SBAR (WHNP (WP$ whose) (JJ seeming) (NN purpose)) (S (VP (VBZ is) (S (VP (TO to) (VP (VB market) (NP (DT the) (JJ charismatic) (NN jackie) (NN chan)) (PP (TO to) (NP (ADJP (RB even) (JJR younger)) (NNS audiences)))))))))))
(ROOT (NP (NP (DT ) (JJ ) (NN ) (HYPH ) (NN )) (SBAR (WHNP (WP$ ) (JJ ) (NN )) (S (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (DT ) (JJ ) (NN ) (NN )) (PP (TO ) (NP (ADJP (RB ) (JJR )) (NNS )))))))))))