user: Question: Who was the opponent for the match were the outcome was Runner-up and the score was 5-7, 1-6?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', '17 September 1978', 'San Antonio , Texas, USA', 'Hard', 'Stacy Margolin', '5-7, 1-6']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Outcome" = 'Runner-up' AND "Score" = '5-7, 1-6';