a_la_ban a_la_bin bon ban
a la ban a la bin bon ban .
a WORD_BOUNDARY l a WORD_BOUNDARY β a n WORD_BOUNDARY a WORD_BOUNDARY l a WORD_BOUNDARY β i n WORD_BOUNDARY β o̞ n WORD_BOUNDARY β a n WORD_BOUNDARY
a WORD_BOUNDARY l a WORD_BOUNDARY b a n WORD_BOUNDARY a WORD_BOUNDARY l a WORD_BOUNDARY b i n WORD_BOUNDARY b o n WORD_BOUNDARY b a n WORD_BOUNDARY . WORD_BOUNDARY