reading an oversized picture book before bedtime 
(ROOT (S (VP (VBG reading) (NP (DT an) (JJ oversized) (NN picture) (NN book)) (PP (IN before) (NP (NN bedtime))))))
(ROOT (S (VP (VBG ) (NP (DT ) (JJ ) (NN ) (NN )) (PP (IN ) (NP (NN ))))))