bi+hiru+bat+bi+hiru
bi hiru bat bi hiru .
b i WORD_BOUNDARY i ɾ u WORD_BOUNDARY β a t WORD_BOUNDARY β i WORD_BOUNDARY i ɾ u WORD_BOUNDARY
b i WORD_BOUNDARY h i r u WORD_BOUNDARY b a t WORD_BOUNDARY b i WORD_BOUNDARY h i r u WORD_BOUNDARY