Who was the mediator in kōhaku number 53?
CREATE TABLE table_1315616_1 (mediator VARCHAR, kōhaku__number VARCHAR)
SELECT mediator FROM table_1315616_1 WHERE kōhaku__number = 53
### Context: CREATE TABLE table_1315616_1 (mediator VARCHAR, kōhaku__number VARCHAR) ### Question: Who was the mediator in kōhaku number 53? ### Answer: SELECT mediator FROM table_1315616_1 WHERE kōhaku__number = 53