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_1520559_1 (country VARCHAR, margin_of_victory VARCHAR)
### Question:
Which countries won by 9 strokes?
### Answer:
SELECT country FROM table_1520559_1 WHERE margin_of_victory = "9 strokes"