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