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

### Instruction:
List the smallest possible spoilt vote with the sør-trøndelag constituency.

### Inputs:
table_name: table, columns: ['Constituency', 'Electorate', 's Spoilt vote', 'Total poll (%)', 'For (%)', 'Against (%)']

### Response:
SELECT MIN s Spoilt vote FROM table WHERE Constituency = Sør-Trøndelag