user: Question: Which Class is Peak Sail when it has a Prom larger than 30?
Columns: ['Peak', 'Height (m)', 'Prom. (m)', 'Class', 'Parent']
Types: ['text', 'real', 'real', 'text', 'text']
Sample row: ['Grasmoor', 852.0, 519.0, 'Marilyn', 'Scafell Pike']
SQL:

assistant: SELECT "Class" FROM "Table" WHERE "Prom. (m)" > 30.0 AND "Peak" = 'Sail';