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

### Instruction:
Who was the runner-up for the Bulgaria Open, before 2007?

### Inputs:
table_name: table, columns: ['Outcome', 'Year', 'Tournament', 'Opponent', 'Score']

### Response:
SELECT Score FROM table WHERE Year < 2007 AND Outcome = runner-up AND Tournament = bulgaria open