iya iya iya he+eh
iya iya iya he eh .
i j a WORD_BOUNDARY  i j a WORD_BOUNDARY  i j a WORD_BOUNDARY h ɛ WORD_BOUNDARY  ɛ h WORD_BOUNDARY
i y a WORD_BOUNDARY i y a WORD_BOUNDARY i y a WORD_BOUNDARY h e WORD_BOUNDARY e h WORD_BOUNDARY