Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_47 (frequency INTEGER, brand VARCHAR)
### Question:
Name the sum of frequecy with brand of exa fm
### Answer:
SELECT SUM(frequency) FROM table_name_47 WHERE brand = "exa fm"