Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Looking only at matches occurring after Game 51, who was the opponent for the game that ended with a score of 99-129?

### Inputs:
table_name: table, columns: ['Game', 'Date', 'Opponent', 'Score', 'Location', 'Record']

### Response:
SELECT Opponent FROM table WHERE Game > 51 AND Score = 99-129