an unencouraging threefold expansion on the former mtv series 
(ROOT (NP (NP (DT an) (JJ unencouraging) (JJ threefold) (NN expansion)) (PP (IN on) (NP (DT the) (JJ former) (NNP mtv) (NN series)))))
(ROOT (NP (NP (DT ) (JJ ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (JJ ) (NNP ) (NN )))))