CREATE TABLE table_name_40 (result VARCHAR2, competition VARCHAR2, date VARCHAR2)

What was the score for the South American Championship dated December 13, 1925?
SELECT result FROM table_name_40 WHERE competition = "south american championship" AND date = "december 13, 1925"
SELECT "result" FROM "table_name_40" WHERE "competition" = "south american championship" AND "date" = "december 13, 1925"