a itai iikoiiko da yo
a itai iikoiiko da yo .
a WORD_BOUNDARY i t a i WORD_BOUNDARY i i k o i i k o WORD_BOUNDARY d a WORD_BOUNDARY j o WORD_BOUNDARY
a WORD_BOUNDARY i t a i WORD_BOUNDARY i i k o i i k o WORD_BOUNDARY d a WORD_BOUNDARY y o WORD_BOUNDARY