user: Question: What is the winning score for the runner-up Ernie Els?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['3 Mar 1996', 'Catalan Open', '−9 (65-70=135)', '1 stroke', 'Fernando Roca']
SQL:

assistant: SELECT "Winning score" FROM "Table" WHERE "Runner(s)-up" = 'Ernie Els';