the soulful development of two rowdy teenagers 
(ROOT (NP (NP (DT the) (JJ soulful) (NN development)) (PP (IN of) (NP (CD two) (JJ rowdy) (NNS teenagers)))))
(ROOT (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (CD ) (JJ ) (NNS )))))