where he went to
where he go to
pro:int pro:sub v prep
where he went to ?
w ɛ ɹ WORD_BOUNDARY h iː WORD_BOUNDARY w ɛ n t WORD_BOUNDARY t uː WORD_BOUNDARY
w h e r e WORD_BOUNDARY h e WORD_BOUNDARY w e n t WORD_BOUNDARY t o WORD_BOUNDARY