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 (date VARCHAR, result VARCHAR, site VARCHAR, attendance VARCHAR)
### Question:
What is the Date at memorial stadium • minneapolis, mn with an Attendance of 20,000, and a Result of w52-0?
### Answer:
SELECT date FROM table_name_7 WHERE site = "memorial stadium • minneapolis, mn" AND attendance = "20,000" AND result = "w52-0"