text: CREATE TABLE athletes(
      id int,
      athlete_name text,
      sex text,
      height int,
      athlete_weight float
  );
  
  CREATE TABLE nations(
      id int,
      NOC text,
      team text
  );
  
  CREATE TABLE games(
      id int,
      game_year int,
      season text,
      city text
  );
  
  CREATE TABLE contests(
      id int,
      contest text,
      sport text
  );
  
  CREATE TABLE athletes_games(
      id int,
      athlete_id int,
      nation_id int,
      game_id int
  );
  
  CREATE TABLE contests_medals(
      id int, 
      athletes_games_id int,
      contest_id int,
      medal text
  );