user: Question: What is the highest percent supporting prohibition when the number opposing is less than 2978 and the percent opposing is less than 31.2 while the number supporting is less than 9461?
Columns: ['Jurisdiction', 'For Prohibition', 'Percent For', 'Against Prohibition', 'Percent Against']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Alberta and Saskatchewan', 6238.0, 68.8, 2824.0, 31.2]
SQL:

assistant: SELECT MAX("Percent For") FROM "Table" WHERE "Against Prohibition" < 2978.0 AND "Percent Against" < 31.2 AND "For Prohibition" < 9461.0;