ato yatteru tochuu ni
ato yatteru tochuu ni .
a t o WORD_BOUNDARY j a t t e r ɯ WORD_BOUNDARY t o t̠ʃ ɯː WORD_BOUNDARY n i WORD_BOUNDARY
a t o WORD_BOUNDARY y a t t e r u WORD_BOUNDARY t o c h u u WORD_BOUNDARY n i WORD_BOUNDARY