ai i aixo i aixo
ai i aixo i aixo .
a j WORD_BOUNDARY i WORD_BOUNDARY a j ɕ ʊ WORD_BOUNDARY i WORD_BOUNDARY a j ɕ ʊ WORD_BOUNDARY
a i WORD_BOUNDARY i WORD_BOUNDARY a i x o WORD_BOUNDARY i WORD_BOUNDARY a i x o WORD_BOUNDARY