allows the film to drag on for nearly three hours 
(ROOT (S (VP (VBZ allows) (S (NP (DT the) (NN film)) (VP (TO to) (VP (VB drag) (PRT (RP on)) (PP (IN for) (NP (QP (RB nearly) (CD three)) (NNS hours)))))))))
(ROOT (S (VP (VBZ ) (S (NP (DT ) (NN )) (VP (TO ) (VP (VB ) (PRT (RP )) (PP (IN ) (NP (QP (RB ) (CD )) (NNS )))))))))