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_87 (on_air_id VARCHAR, frequency VARCHAR)
### Question:
Frequency of 100.1 has what on-air id?
### Answer:
SELECT on_air_id FROM table_name_87 WHERE frequency = "100.1"