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_31 (city_of_license VARCHAR, frequency_mhz VARCHAR, call_sign VARCHAR)
### Question:
Which city has frequency under 106.5MHz and a callsign of w218ck?
### Answer:
SELECT city_of_license FROM table_name_31 WHERE frequency_mhz < 106.5 AND call_sign = "w218ck"