hai Taro wakatta wakatta
hai taro wakatta wakatta .
h a i WORD_BOUNDARY t a r o WORD_BOUNDARY w a k a t t a WORD_BOUNDARY w a k a t t a WORD_BOUNDARY
h a i WORD_BOUNDARY t a r o WORD_BOUNDARY w a k a t t a WORD_BOUNDARY w a k a t t a WORD_BOUNDARY