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_17487395_1 (callsign VARCHAR, frequency VARCHAR)
### Question:
What is the call sign of the station with the frequency of 90.3mhz
### Answer:
SELECT callsign FROM table_17487395_1 WHERE frequency = "90.3MHz"