user: Question: How many Tries against has a Try diff of –17 and Points for smaller than 80?
Columns: ['Team', 'Tries for', 'Tries against', 'Try diff', 'Points for', 'Points against', 'Points diff']
Types: ['text', 'real', 'real', 'text', 'real', 'real', 'text']
Sample row: ['Leicester', 14.0, 3.0, '11', 114.0, 43.0, '71']
SQL:

assistant: SELECT "Tries against" FROM "Table" WHERE "Try diff" = '–17' AND "Points for" < 80.0;