let 's see , a haunted house , a haunted ship , what 's next ... ghost blimp ? 
(ROOT (S (S (VP (VB let) (S (NP (PRP 's)) (VP (VB see))))) (, ,) (NP (NP (DT a) (VBN haunted) (NN house)) (, ,) (NP (DT a) (VBN haunted) (NN ship))) (, ,) (SBARQ (WHNP (WP what)) (S (VP (VBZ 's) (ADJP (JJ next)))) (, ...) (NP (NN ghost) (NN blimp))) (. ?)))
(ROOT (S (S (VP (VB ) (S (NP (PRP )) (VP (VB ))))) (, ) (NP (NP (DT ) (VBN ) (NN )) (, ) (NP (DT ) (VBN ) (NN ))) (, ) (SBARQ (WHNP (WP )) (S (VP (VBZ ) (ADJP (JJ )))) (, ) (NP (NN ) (NN ))) (. )))