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

### Instruction:
Which dam type was completed in 1961?

### Inputs:
table_name: table, columns: ['Dam constructed', 'Year completed', 'Impounded body of water', 'Reservoir capacity', 'Dam wall height', 'Dam type']

### Response:
SELECT Dam type FROM table WHERE Year completed = 1961