unfortunately , we 'd prefer a simple misfire . 
(ROOT (S (ADVP (RB unfortunately)) (, ,) (NP (PRP we)) (VP (MD 'd) (VP (VB prefer) (NP (DT a) (JJ simple) (NN misfire)))) (. .)))
(ROOT (S (ADVP (RB )) (, ) (NP (PRP )) (VP (MD ) (VP (VB ) (NP (DT ) (JJ ) (NN )))) (. )))