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

### Instruction:
What is the locomotive with a standard gauge and a serial number of 83-1015?

### Inputs:
table_name: table, columns: ['Locomotive', 'Serial No', 'Entered service', 'Gauge', 'Livery']

### Response:
SELECT Locomotive FROM table WHERE Gauge = standard AND Serial No = 83-1015