user: Question: What is the lowest tier for a position smaller than 7 for a Turkish Cup group stage?
Columns: ['Season', 'Tier', 'League', 'Pos.', 'Turkish Cup']
Types: ['text', 'real', 'text', 'real', 'text']
Sample row: ['2004–05', 2.0, 'TB2L', 3.0, '–']
SQL:

assistant: SELECT MIN("Tier") FROM "Table" WHERE "Turkish Cup" = 'group stage' AND "Pos." < 7.0;