user: Question: What is the highest rank for Peter Symes?
Columns: ['Rank', 'Rider', 'Team', 'Speed', 'Time']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Ewan Hamilton', '242cc Suzuki', '93.937mph', '1:36.23.79']
SQL:

assistant: SELECT MAX("Rank") FROM "Table" WHERE "Rider" = 'Peter Symes';