What is the average Position, when Speed is '143.5km/h'?
CREATE TABLE table_name_97 (
    position INTEGER,
    speed VARCHAR
)
SELECT AVG(position) FROM table_name_97 WHERE speed = "143.5km/h"
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 average Position, when Speed is '143.5km/h'? ### Input: CREATE TABLE table_name_97 (
    position INTEGER,
    speed VARCHAR
) ### Response: SELECT AVG(position) FROM table_name_97 WHERE speed = "143.5km/h"