user: Question: Name the total number of rank for 348cc petty manx
Columns: ['Rank', 'Rider', 'Team', 'Speed', 'Time']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Roy Richardson', '349cc Drixton Honda', '101.545mph', '1:31.04.39']
SQL:

assistant: SELECT COUNT("Rank") FROM "Table" WHERE "Team" = '348cc petty manx';