user: Question: Who was the Opponent at the Game Site Indianapolis Hoosierdome?
Columns: ['Date', 'Opponent', 'Result', 'Game site', 'Record']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Date', 'Opponent', 'Result', 'Game site', 'Record']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Game site" = 'Indianapolis Hoosierdome';