( Why ( ( is ( the ( Blue ( block blue ) ) ) ) ? ) )
(ROOT (SBARQ (WHADVP (WRB Why)) (SQ (VBZ is) (NP (DT the) (JJ Blue) (NN block) (NN blue))) (. ?)))
Why is the Blue block blue?
(ROOT (S (NP (DT A) (JJ blue) (NN block)) (VP (VBZ appears) (ADJP (JJ blue) (PP (IN in) (NP (DT the) (NN sunlight)))) (SBAR (IN if) (S (NP (RB only) (JJ blue) (NN light)) (VP (VBZ is) (VP (VBN reflected) (PP (IN by) (NP (DT the) (NN block)))))))) (. .)))