kopokopokopo kopokopokopokopo
kopokopokopo kopokopokopokopo .
k o p o k o p o k o p o WORD_BOUNDARY k o p o k o p o k o p o k o p o WORD_BOUNDARY
k o p o k o p o k o p o WORD_BOUNDARY k o p o k o p o k o p o k o p o WORD_BOUNDARY