Kakka janai n da kara wakaranai
kakka janai n da kara wakaranai .
k a k k a WORD_BOUNDARY d̠ʒ a n a i WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY k a r a WORD_BOUNDARY w a k a r a n a i WORD_BOUNDARY
k a k k a WORD_BOUNDARY j a n a i WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY k a r a WORD_BOUNDARY w a k a r a n a i WORD_BOUNDARY