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

### Instruction:
What is the manufacturer, found under the Built column, that made locomotives with a Fuel/Trans of diesel-electric?

### Inputs:
table_name: table, columns: ['Name', 'Built', 'Wheels', 'Fuel/ Trans', 'Status', 'Colour']

### Response:
SELECT Built FROM table WHERE Fuel/ Trans = diesel-electric