Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_90 (winning_score VARCHAR, margin_of_victory VARCHAR)
### Question:
For the tournament ending with a margin of victory of 6 strokes, what was the winning score?
### Answer:
SELECT winning_score FROM table_name_90 WHERE margin_of_victory = "6 strokes"