nearly 21/2 hours of unfocused , excruciatingly tedious cinema 
(ROOT (NP (NP (QP (RB nearly) (CD 21/2)) (NNS hours)) (PP (IN of) (NP (JJ unfocused) (, ,) (ADJP (RB excruciatingly) (JJ tedious)) (NN cinema)))))
(ROOT (NP (NP (QP (RB ) (CD )) (NNS )) (PP (IN ) (NP (JJ ) (, ) (ADJP (RB ) (JJ )) (NN )))))