Return the names of countries that have players that play the Forward position, as well as players who play the Defender position.
CREATE TABLE country (
    country_id number,
    country_name text,
    capital text,
    official_native_language text
)

CREATE TABLE player (
    player_id number,
    player text,
    years_played text,
    total_wl text,
    singles_wl text,
    doubles_wl text,
    team number
)

CREATE TABLE team (
    team_id number,
    name text
)

CREATE TABLE match_season (
    season number,
    player text,
    position text,
    country number,
    team number,
    draft_pick_number number,
    draft_class text,
    college text
)
SELECT T1.country_name FROM country AS T1 JOIN match_season AS T2 ON T1.country_id = T2.country WHERE T2.position = "Forward" INTERSECT SELECT T1.country_name FROM country AS T1 JOIN match_season AS T2 ON T1.country_id = T2.country WHERE T2.position = "Defender"
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: Return the names of countries that have players that play the Forward position, as well as players who play the Defender position. ### Input: CREATE TABLE country (
    country_id number,
    country_name text,
    capital text,
    official_native_language text
)

CREATE TABLE player (
    player_id number,
    player text,
    years_played text,
    total_wl text,
    singles_wl text,
    doubles_wl text,
    team number
)

CREATE TABLE team (
    team_id number,
    name text
)

CREATE TABLE match_season (
    season number,
    player text,
    position text,
    country number,
    team number,
    draft_pick_number number,
    draft_class text,
    college text
) ### Response: SELECT T1.country_name FROM country AS T1 JOIN match_season AS T2 ON T1.country_id = T2.country WHERE T2.position = "Forward" INTERSECT SELECT T1.country_name FROM country AS T1 JOIN match_season AS T2 ON T1.country_id = T2.country WHERE T2.position = "Defender"