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_19 (identifier VARCHAR, frequency VARCHAR)
### Question:
what is the Identifier with 94.9 fm Frequency
### Answer:
SELECT identifier FROM table_name_19 WHERE frequency = "94.9 fm"