What's your favorite?
( What ( ( 's ( your favorite ) ) ? ) )
(ROOT (SBARQ (WHNP (WP What)) (SQ (VBZ 's) (NP (PRP$ your) (NN favorite))) (. ?)))
Do you have a favorite?
( ( ( Do you ) ( have ( a favorite ) ) ) ? )
(ROOT (SQ (VBP Do) (NP (PRP you)) (VP (VB have) (NP (DT a) (NN favorite))) (. ?)))