Question: Which base has a company of Theatro Technis Karolos Koun?
SQL: SELECT "base" FROM "2-18379129-5" WHERE "company" = 'Theatro Technis Karolos Koun';

Question: Which company has an author of Aristophanes and play of Plutus?
SQL: SELECT "company" FROM "2-18379129-5" WHERE "author" = 'Aristophanes' AND "play" = 'Plutus';

Question: Which author has a company of the Semeio Theatre?
SQL: SELECT "author" FROM "2-18379129-5" WHERE "company" = 'Semeio Theatre';

Question: Which play was done by the Radu Stanca National Theatre company?
SQL: SELECT "play" FROM "2-18379129-5" WHERE "company" = 'Radu Stanca National Theatre';

Question: Which play had a base of Aosta?
SQL: SELECT "play" FROM "2-18379129-5" WHERE "base" = 'Aosta';

Question: What is the country of the play based in Athens at the Attis Theatre company?
SQL: SELECT "country" FROM "2-18379129-5" WHERE "base" = 'Athens' AND "company" = 'Attis Theatre';