Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_34543 ( "Date" text, "Tournament" text, "Winning score" text, "Margin of victory" text, "Runner(s)-up" text )

### Question ###
Who is runner-up where the winning score is 6 (65-70-70-69=274) and the margin of victory is 3 strokes?

### Accurate SQL ###

SELECT "Runner(s)-up" FROM table_34543 WHERE "Margin of victory" = '3 strokes' AND "Winning score" = '–6 (65-70-70-69=274)'