which book did he
which book do he
pro:rel n mod pro:sub
which book did he .
w ɪ t̠ʃ WORD_BOUNDARY b ʊ k WORD_BOUNDARY d ɪ d WORD_BOUNDARY h iː WORD_BOUNDARY
w h i c h WORD_BOUNDARY b o o k WORD_BOUNDARY d i d WORD_BOUNDARY h e WORD_BOUNDARY