CREATE TABLE table_name_2 (date_of_vacancy VARCHAR, team VARCHAR, replaced_by VARCHAR)

what is the date of vacancy when the team is firpo and replaced by is oscar benitez?
SELECT date_of_vacancy FROM table_name_2 WHERE team = "firpo" AND replaced_by = "oscar benitez"
SELECT "date_of_vacancy" FROM "table_name_2" WHERE "firpo" = "team" AND "oscar benitez" = "replaced_by"