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