a kore kowa kowareta ka omota
a kore kowa kowareta ka omota .
a WORD_BOUNDARY k o r e WORD_BOUNDARY k o w a WORD_BOUNDARY k o w a r e t a WORD_BOUNDARY k a WORD_BOUNDARY o m o t a WORD_BOUNDARY
a WORD_BOUNDARY k o r e WORD_BOUNDARY k o w a WORD_BOUNDARY k o w a r e t a WORD_BOUNDARY k a WORD_BOUNDARY o m o t a WORD_BOUNDARY