user: Question: Who was the opponent at the game with a loss of Weaver (1-2)?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['April 2', 'White Sox', '7 - 4', 'Colón (0-1)', '42,606', '0-1']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Loss" = 'Weaver (1-2)';