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

### Instruction:
What is Number of Contestants, when International Destinations is London Lisbon?

### Inputs:
table_name: table, columns: ['Cycle', 'Premiere date', 'Winner', 'Runner-up', 'Number of contestants', 'International Destinations']

### Response:
SELECT Number of contestants FROM table WHERE International Destinations = london lisbon