a ver ser bonitos ser buenos
a ver ser bonitos ser buenos .
a WORD_BOUNDARY β e ɾ WORD_BOUNDARY s e r WORD_BOUNDARY β o n i t o s WORD_BOUNDARY s e r WORD_BOUNDARY β w e n o s WORD_BOUNDARY
a WORD_BOUNDARY v e r WORD_BOUNDARY s e r WORD_BOUNDARY b o n i t o s WORD_BOUNDARY s e r WORD_BOUNDARY b u e n o s WORD_BOUNDARY