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

### Instruction:
When the president was Yoweri Museveni, and the year was 1993, with rank of 6 under political rights, what was the total of civil liberties?

### Inputs:
table_name: table, columns: ['Year', 'Political Rights', 'Civil Liberties', 'Status', 'President']

### Response:
SELECT SUM Civil Liberties FROM table WHERE Political Rights = 6 AND President = yoweri museveni AND Year = 1993