user: Question: What power has Thunder Bay as the city of license?
Columns: ['City of license', 'Identifier', 'Frequency', 'Power', 'Class', 'RECNet']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Blind River', 'CBON-6', '1010 AM', '40 s watt', 'LP', 'Query']
SQL:

assistant: SELECT "Power" FROM "Table" WHERE "City of license" = 'Thunder Bay';