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_23157997_13 (youth_classification VARCHAR, mountains_classification VARCHAR, winner VARCHAR)
### Question:
Who was the Youth Classification in the race with Kenneth Hanson as Mountains Classification and Lucas Sebastian Haedo as winner?
### Answer:
SELECT youth_classification FROM table_23157997_13 WHERE mountains_classification = "Kenneth Hanson" AND winner = "Lucas Sebastian Haedo"