hao che hao che hao che
hao che hao che hao che .
h a o WORD_BOUNDARY χ ɛ WORD_BOUNDARY h a o WORD_BOUNDARY χ ɛ WORD_BOUNDARY h a o WORD_BOUNDARY χ ɛ WORD_BOUNDARY
h a o WORD_BOUNDARY c h e WORD_BOUNDARY h a o WORD_BOUNDARY c h e WORD_BOUNDARY h a o WORD_BOUNDARY c h e WORD_BOUNDARY