user: Question: What is the total difference for teams that played less than 6 games?
Columns: ['Club', 'Played', 'Lost', 'Drawn', 'Against', 'Diff.', 'Points']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Wigan Warriors', 6.0, 4.0, 0.0, 212.0, 123.0, 4.0]
SQL:

assistant: SELECT SUM("Diff.") FROM "Table" WHERE "Played" < 6.0;