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 (result VARCHAR, extra VARCHAR, year VARCHAR)
### Question:
what is the result when extra is 4 x 100 m relay and the year is later than 1971?
### Answer:
SELECT result FROM table_name_15 WHERE extra = "4 x 100 m relay" AND year > 1971