a_ver espera espera espera espera
a ver espera espera espera espera .
a WORD_BOUNDARY β e ɾ WORD_BOUNDARY e s p e ɾ a WORD_BOUNDARY e s p e ɾ a WORD_BOUNDARY e s p e ɾ a WORD_BOUNDARY e s p e ɾ a WORD_BOUNDARY
a WORD_BOUNDARY v e r WORD_BOUNDARY e s p e r a WORD_BOUNDARY e s p e r a WORD_BOUNDARY e s p e r a WORD_BOUNDARY e s p e r a WORD_BOUNDARY