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_1637981_7 (kalamazoo__azo_ VARCHAR, saginaw__mbs_ VARCHAR)
### Question:
What is the fare to Kalamazoo during the time frame when Saginaw's was $481.39?
### Answer:
SELECT kalamazoo__azo_ FROM table_1637981_7 WHERE saginaw__mbs_ = "$481.39"