CREATE TABLE table_78779 ("Edition" CLOB, "Date" CLOB, "Winner" CLOB, "Country" CLOB, "Time  (  h : m : s  ) " CLOB)

What was the nationality of the winner for the 20th Edition?
SELECT "Country" FROM table_78779 WHERE "Edition" = '20th'
SELECT "Country" FROM "table_78779" WHERE "Edition" = '20th'