user: Question: what is the least penalty points when the judge e is 72.22?
Columns: ['Rank', 'Rider', 'Horse', 'Nation', 'Judge E', 'Judge C', 'Judge M', 'Penalty Points']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['1', 'Lucinda Fredericks', 'Headley Britannia', 'Australia', '82.22', '78.52', '78.52', 30.4]
SQL:

assistant: SELECT MIN("Penalty Points") FROM "Table" WHERE "Judge E" = '72.22';