ama Koko ama Koko yuk
ama koko ama koko yuk !
a m a WORD_BOUNDARY k o k o WORD_BOUNDARY  a m a WORD_BOUNDARY k o k o WORD_BOUNDARY j u k WORD_BOUNDARY
a m a WORD_BOUNDARY k o k o WORD_BOUNDARY a m a WORD_BOUNDARY k o k o WORD_BOUNDARY y u k WORD_BOUNDARY