user: Question: What is the total of built with a flag of panama?
Columns: ['Built', 'Ship', 'Operator', 'Tonnage', 'Flag']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2006.0, 'Costa Concordia', 'Costa Cruises', 'GT', 'Italy']
SQL:

assistant: SELECT SUM("Built") FROM "Table" WHERE "Flag" = 'panama';