user: Question: What is Number of Contestants, when International Destinations is London Lisbon?
Columns: ['Cycle', 'Premiere date', 'Winner', 'Runner-up', 'Number of contestants', 'International Destinations']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'April 6, 2008', 'Ani Alitalo', 'Darina Shved', '12', 'Stockholm Turkey']
SQL:

assistant: SELECT "Number of contestants" FROM "Table" WHERE "International Destinations" = 'London Lisbon';