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 (surface VARCHAR, score VARCHAR)
### Question:
What was the surface of the game that resulted in a final score of 6-1 7-5?
### Answer:
SELECT surface FROM table_name_90 WHERE score = "6-1 7-5"