user: Question: What Team 2 has a second leg of 3-1?
Columns: ['Team 1', 'Agg.', 'Team 2', '1st leg', '2nd leg']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ["Stella d'Adjamé", '1-1 (3-4 pen)', 'RS Kouba', '1-0', '0-1']
SQL:

assistant: SELECT "Team 2" FROM "Table" WHERE "2nd leg" = '3-1';