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_17 (quantity_preserved VARCHAR, class VARCHAR)
### Question:
What is the quantity preserved of the e-1 class?
### Answer:
SELECT quantity_preserved FROM table_name_17 WHERE class = "e-1"