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_80 (call_sign VARCHAR, tail_code VARCHAR)
### Question:
Which Call Sign that has Tail Code ed?
### Answer:
SELECT call_sign FROM table_name_80 WHERE tail_code = "ed"