iya iya iya iya iya
iya iya iya iya iya .
i j a WORD_BOUNDARY  i j a WORD_BOUNDARY  i j a WORD_BOUNDARY  i j a WORD_BOUNDARY  i j a WORD_BOUNDARY
i y a WORD_BOUNDARY i y a WORD_BOUNDARY i y a WORD_BOUNDARY i y a WORD_BOUNDARY i y a WORD_BOUNDARY