a konna natteru kara ya
a konna natteru kara ya .
a WORD_BOUNDARY k o n n a WORD_BOUNDARY n a t t e r ɯ WORD_BOUNDARY k a r a WORD_BOUNDARY j a WORD_BOUNDARY
a WORD_BOUNDARY k o n n a WORD_BOUNDARY n a t t e r u WORD_BOUNDARY k a r a WORD_BOUNDARY y a WORD_BOUNDARY