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_7 (volume VARCHAR, weeks_on_top VARCHAR, artist VARCHAR)
### Question:
What's the volume:issue of Sheryl Crow with 3 weeks on top?
### Answer:
SELECT volume AS :issue FROM table_name_7 WHERE weeks_on_top = "3" AND artist = "sheryl crow"