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_15 (year VARCHAR, party VARCHAR, constituency VARCHAR)
### Question:
What year was Hazel Grove the constituent for the liberal party?
### Answer:
SELECT year FROM table_name_15 WHERE party = "liberal" AND constituency = "hazel grove"