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