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_1 (wheel_arrangement VARCHAR, quantity_preserved VARCHAR)
### Question:
What is the wheel arrangement with 1 quantity preserved?
### Answer:
SELECT wheel_arrangement FROM table_name_1 WHERE quantity_preserved = "1"