trapped wo n't score points for political correctness , but it may cause parents a few sleepless hours -- a sign of its effectiveness . 
(ROOT (S (S (S (VP (VBN trapped))) (VP (MD wo) (RB n't) (VP (VB score) (NP (NNS points)) (PP (IN for) (NP (JJ political) (NN correctness)))))) (, ,) (CC but) (S (NP (PRP it)) (VP (MD may) (VP (VB cause) (NP (NNS parents)) (NP (NP (DT a) (JJ few) (JJ sleepless) (NNS hours)) (, --) (NP (NP (DT a) (NN sign)) (PP (IN of) (NP (PRP$ its) (NN effectiveness)))))))) (. .)))
(ROOT (S (S (S (VP (VBN ))) (VP (MD ) (RB ) (VP (VB ) (NP (NNS )) (PP (IN ) (NP (JJ ) (NN )))))) (, ) (CC ) (S (NP (PRP )) (VP (MD ) (VP (VB ) (NP (NNS )) (NP (NP (DT ) (JJ ) (JJ ) (NNS )) (, ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (NN )))))))) (. )))