What is the smallest fleet size with a type of shunter introduced in 1953?
CREATE TABLE table_name_87 (
    fleet_size INTEGER,
    type VARCHAR,
    introduced VARCHAR
)
SELECT MIN(fleet_size) FROM table_name_87 WHERE type = "shunter" AND introduced = "1953"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the smallest fleet size with a type of shunter introduced in 1953? ### Input: CREATE TABLE table_name_87 (
    fleet_size INTEGER,
    type VARCHAR,
    introduced VARCHAR
) ### Response: SELECT MIN(fleet_size) FROM table_name_87 WHERE type = "shunter" AND introduced = "1953"