a là aco a là
a là aco a là .
ɐ WORD_BOUNDARY l ɐ WORD_BOUNDARY ɐ k o WORD_BOUNDARY ɐ WORD_BOUNDARY l ɐ WORD_BOUNDARY
a WORD_BOUNDARY l à WORD_BOUNDARY a c o WORD_BOUNDARY a WORD_BOUNDARY l à WORD_BOUNDARY . WORD_BOUNDARY