da:n kowareru kowareru
da:n kowareru kowareru .
d a WORD_BOUNDARY n WORD_BOUNDARY k o w a r e r ɯ WORD_BOUNDARY k o w a r e r ɯ WORD_BOUNDARY
d a : n WORD_BOUNDARY k o w a r e r u WORD_BOUNDARY k o w a r e r u WORD_BOUNDARY