List the distinct positions of pilots older than 30.
CREATE TABLE aircraft (
    aircraft_id number,
    order_year number,
    manufacturer text,
    model text,
    fleet_series text,
    powertrain text,
    fuel_propulsion text
)

CREATE TABLE pilot_record (
    record_id number,
    pilot_id number,
    aircraft_id number,
    date text
)

CREATE TABLE pilot (
    pilot_id number,
    pilot_name text,
    rank number,
    age number,
    nationality text,
    position text,
    join_year number,
    team text
)
SELECT DISTINCT position FROM pilot WHERE age > 30
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: List the distinct positions of pilots older than 30. ### Input: CREATE TABLE aircraft (
    aircraft_id number,
    order_year number,
    manufacturer text,
    model text,
    fleet_series text,
    powertrain text,
    fuel_propulsion text
)

CREATE TABLE pilot_record (
    record_id number,
    pilot_id number,
    aircraft_id number,
    date text
)

CREATE TABLE pilot (
    pilot_id number,
    pilot_name text,
    rank number,
    age number,
    nationality text,
    position text,
    join_year number,
    team text
) ### Response: SELECT DISTINCT position FROM pilot WHERE age > 30