oso_bona no ese no es oso_bona
oso bona no ese no es oso bona .
o s o WORD_BOUNDARY β o n a WORD_BOUNDARY n o WORD_BOUNDARY e s e WORD_BOUNDARY n o WORD_BOUNDARY e s WORD_BOUNDARY o s o WORD_BOUNDARY β o n a WORD_BOUNDARY
o s o WORD_BOUNDARY b o n a WORD_BOUNDARY n o WORD_BOUNDARY e s e WORD_BOUNDARY n o WORD_BOUNDARY e s WORD_BOUNDARY o s o WORD_BOUNDARY b o n a WORD_BOUNDARY