user: Question: What is the lowest rank?
Columns: ['Rank', 'Couple', 'Judges', 'Public', 'Total', 'Vote percentage', 'Result']
Types: ['real', 'text', 'real', 'real', 'real', 'text', 'text']
Sample row: [1.0, 'Ray and Maria', 7.0, 7.0, 14.0, '42.658%', 'Safe']
SQL:

assistant: SELECT MIN("Rank") FROM "Table";