a kaeru ga detekita na
a kaeru ga detekita na .
a WORD_BOUNDARY k a e r ɯ WORD_BOUNDARY g a WORD_BOUNDARY d e t e k i t a WORD_BOUNDARY n a WORD_BOUNDARY
a WORD_BOUNDARY k a e r u WORD_BOUNDARY g a WORD_BOUNDARY d e t e k i t a WORD_BOUNDARY n a WORD_BOUNDARY