CREATE TABLE table_203_780 (id NUMBER, "rank" NUMBER, "diver" CLOB, "preliminary\ points" NUMBER, "preliminary\ rank" NUMBER, "final\ points" NUMBER, "final\ rank" NUMBER, "final\ total" NUMBER)

who ranked first in the preliminary ?
SELECT "diver" FROM table_203_780 WHERE "preliminary\nrank" = 1
SELECT "diver" FROM "table_203_780" WHERE "preliminary\nrank" = 1