How many years entered service when there were 13 locomotives?
CREATE TABLE table_name_89 (
    entered_service VARCHAR,
    locomotive VARCHAR
)
SELECT COUNT(entered_service) FROM table_name_89 WHERE locomotive = "13"
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: How many years entered service when there were 13 locomotives? ### Input: CREATE TABLE table_name_89 (
    entered_service VARCHAR,
    locomotive VARCHAR
) ### Response: SELECT COUNT(entered_service) FROM table_name_89 WHERE locomotive = "13"