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