popopo popopo pokoponpon pokoponpon
popopo popopo pokoponpon pokoponpon .
p o p o p o WORD_BOUNDARY p o p o p o WORD_BOUNDARY p o k o p o n p o n WORD_BOUNDARY p o k o p o n p o n WORD_BOUNDARY
p o p o p o WORD_BOUNDARY p o p o p o WORD_BOUNDARY p o k o p o n p o n WORD_BOUNDARY p o k o p o n p o n WORD_BOUNDARY