Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is Tournament, when 1996 is "1R", and when 1990 is "SF"?

### Inputs:
table_name: table, columns: ['Tournament', '1990', '1991', '1992', '1993', '1994', '1995', '1996']

### Response:
SELECT Tournament FROM table WHERE 1996 = 1r AND 1990 = sf