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_87 (prime_mover VARCHAR, build_date VARCHAR)
### Question:
What is the prime mover for a build date in 1975?
### Answer:
SELECT prime_mover FROM table_name_87 WHERE build_date = "1975"