a potentially trite and overused concept ( aliens come to earth ) 
(ROOT (NP (NP (DT a) (ADJP (RB potentially) (JJ trite) (CC and) (VBN overused)) (NN concept)) (-LRB- -LRB-) (S (NP (NNS aliens)) (VP (VBP come) (PP (IN to) (NP (NN earth))))) (-RRB- -RRB-)))
(ROOT (NP (NP (DT ) (ADJP (RB ) (JJ ) (CC ) (VBN )) (NN )) (-LRB- ) (S (NP (NNS )) (VP (VBP ) (PP (IN ) (NP (NN ))))) (-RRB- )))