boku wa yama da yo
boku wa yama da yo .
b o k ɯ WORD_BOUNDARY w a WORD_BOUNDARY j a m a WORD_BOUNDARY d a WORD_BOUNDARY j o WORD_BOUNDARY
b o k u WORD_BOUNDARY w a WORD_BOUNDARY y a m a WORD_BOUNDARY d a WORD_BOUNDARY y o WORD_BOUNDARY