user: Question: What is the wager on August 23, 1992 where Vampiro was the winner?
Columns: ['Wager', 'Winner', 'Loser', 'Location', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Hair', 'Vampiro', 'Bestia Negra II', 'Xochimilco , Mexico City', 'March 21, 1992']
SQL:

assistant: SELECT "Wager" FROM "Table" WHERE "Winner" = 'Vampiro' AND "Date" = 'August 23, 1992';