the immediate aftermath of the terrorist attacks 
(ROOT (NP (NP (DT the) (JJ immediate) (NN aftermath)) (PP (IN of) (NP (DT the) (JJ terrorist) (NNS attacks)))))
(ROOT (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (JJ ) (NNS )))))