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

### Instruction:
In the Ohio 4 district, that is the first elected date that has a result of re-elected?

### Inputs:
table_name: table, columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result']

### Response:
SELECT SUM First elected FROM table WHERE Result = re-elected AND District = ohio 4