Are you reading things?
( ( ( Are you ) ( reading things ) ) ? )
(ROOT (SQ (VBP Are) (NP (PRP you)) (VP (VBG reading) (NP (NNS things))) (. ?)))
Are you reading things about the accident?
( ( ( Are you ) ( reading ( things ( about ( the accident ) ) ) ) ) ? )
(ROOT (SQ (VBP Are) (NP (PRP you)) (VP (VBG reading) (NP (NP (NNS things)) (PP (IN about) (NP (DT the) (NN accident))))) (. ?)))