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_31 (competition VARCHAR, result VARCHAR, date VARCHAR)
### Question:
What competition has a result of W on June 30, 1966?
### Answer:
SELECT competition FROM table_name_31 WHERE result = "w" AND date = "june 30, 1966"