Kakka no atama ni tomatta
kakka no atama ni tomatta ?
k a k k a WORD_BOUNDARY n o WORD_BOUNDARY a t a m a WORD_BOUNDARY n i WORD_BOUNDARY t o m a t t a WORD_BOUNDARY
k a k k a WORD_BOUNDARY n o WORD_BOUNDARY a t a m a WORD_BOUNDARY n i WORD_BOUNDARY t o m a t t a WORD_BOUNDARY