has about 25 minutes of decent material . 
(ROOT (S (VP (VBZ has) (NP (NP (QP (RB about) (CD 25)) (NNS minutes)) (PP (IN of) (NP (JJ decent) (NN material))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (NP (QP (RB ) (CD )) (NNS )) (PP (IN ) (NP (JJ ) (NN ))))) (. )))