CREATE TABLE table_76793 ("Year" FLOAT, "Tournament" TEXT, "Surface" TEXT, "Round" TEXT, "Winner" TEXT, "Score" TEXT, "Length  ( H:MM ) " TEXT, "Sets" TEXT, "Federer" FLOAT, "Nadal" FLOAT)

What tournament did Nadal win and had a nadal of 16?
SELECT "Tournament" FROM table_76793 WHERE "Winner" = 'nadal' AND "Nadal" = '16'
SELECT "Tournament" FROM "table_76793" WHERE "Nadal" = '16' AND "Winner" = 'nadal'