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_46 (sponsor VARCHAR, winning_driver VARCHAR, date VARCHAR)
### Question:
Who sponsored Greg Biffle's win on April 14?
### Answer:
SELECT sponsor FROM table_name_46 WHERE winning_driver = "greg biffle" AND date = "april 14"