Questão 96556

A diplomatic communiqué regarding a territorial dispute contained the following statement: 'Both nations have compelling historical claims to the region. To avoid further escalation, a resolution must be found that does not wholly favor either party at the expense of the other. The treaty could establish a demilitarized zone on either side of the current border, but this proposal has not satisfied the diplomats.' In this text, the word 'either' is used in two distinct ways. Mark the option that correctly identifies its grammatical function in both occurrences, respectively.