Tell me, how did those scribbled words on the envelope help you to discover that a will was made yesterday afternoon?" Poirot smiled. 
( ( ( ( ( Tell me ) , ) ( how ( did ( those ( ( ( ( scribbled words ) ( on ( the envelope ) ) ) ( help ( you ( to ( discover ( that ( ( a will ) ( was ( made yesterday ) ) ) ) ) ) ) ) ) afternoon ) ) ) ) ) ? ) ( '' ( Poirot ( smiled . ) ) ) )
(ROOT (S (SQ (VP (VB Tell) (NP (PRP me)) (, ,) (SBAR (WHADVP (WRB how)) (S (VP (VBD did) (SBAR (S (NP (DT those)) (VP (VBD scribbled) (NP (NNS words)) (PP (IN on) (NP (DT the) (NN envelope))) (S (VP (VB help) (S (NP (PRP you)) (VP (TO to) (VP (VB discover) (SBAR (IN that) (S (NP (DT a) (NN will)) (VP (VBD was) (VP (VBN made) (NP (NN yesterday))))))))))) (NP (NN afternoon))))))))) (. ?)) ('' '') (NP (NNP Poirot)) (VP (VBD smiled)) (. .)))
Tell me, how could you tell from that text that a will was made yesterday afternoon?
( ( Tell me ) ( , ( how ( ( ( could you ) ( ( tell ( from ( that text ) ) ) ( that ( ( a will ) ( was ( made ( yesterday afternoon ) ) ) ) ) ) ) ? ) ) ) )
(ROOT (SBARQ (S (VP (VB Tell) (NP (PRP me)))) (, ,) (WHNP (WRB how)) (SQ (MD could) (NP (PRP you)) (VP (VB tell) (PP (IN from) (NP (DT that) (NN text))) (SBAR (IN that) (S (NP (DT a) (NN will)) (VP (VBD was) (VP (VBN made) (NP (NN yesterday) (NN afternoon)))))))) (. ?)))