What color is it?
( ( What color ) ( ( is it ) ? ) )
(ROOT (SBARQ (WHNP (WDT What) (NN color)) (SQ (VBZ is) (NP (PRP it))) (. ?)))
Is it blue?
( ( ( Is it ) blue ) ? )
(ROOT (SQ (VBZ Is) (NP (PRP it)) (ADJP (JJ blue)) (. ?)))