expects something special but instead gets ( sci-fi ) rehash 
(ROOT (S (S (VP (VBZ expects) (NP (NN something) (JJ special)))) (CC but) (ADVP (RB instead)) (VP (VBZ gets) (NP (-LRB- -LRB-) (NML (NN sci) (HYPH -) (NN fi)) (-RRB- -RRB-) (NN rehash)))))
(ROOT (S (S (VP (VBZ ) (NP (NN ) (JJ )))) (CC ) (ADVP (RB )) (VP (VBZ ) (NP (-LRB- ) (NML (NN ) (HYPH ) (NN )) (-RRB- ) (NN )))))