CREATE TABLE table_68552 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

Which opponent has a Surface of clay, an Outcome of winner, a Tournament of bogot , and a Score of 6 0, 6 4?
SELECT "Opponent" FROM table_68552 WHERE "Surface" = 'clay' AND "Outcome" = 'winner' AND "Tournament" = 'bogotá' AND "Score" = '6–0, 6–4'
SELECT "Opponent" FROM "table_68552" WHERE "Outcome" = 'winner' AND "Score" = '6–0, 6–4' AND "Surface" = 'clay' AND "Tournament" = 'bogotá'