like an extended dialogue exercise in retard 101 
(ROOT (PP (IN like) (NP (NP (DT an) (VBN extended) (NN dialogue) (NN exercise)) (PP (IN in) (NP (NN retard) (CD 101))))))
(ROOT (PP (IN ) (NP (NP (DT ) (VBN ) (NN ) (NN )) (PP (IN ) (NP (NN ) (CD ))))))