Table: golf_results_6
Columns: date
tournament
winning_score
margin_of_victory
runner_s_up

Question: What tournament that Fernando Roca is the runner-up?
SQL: SELECT "tournament" FROM golf_results_6 WHERE "runner_s_up" = 'fernando roca'

Question: What is the winning score for the runner-up Ernie Els?
SQL: SELECT "winning_score" FROM golf_results_6 WHERE "runner_s_up" = 'ernie els'