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_11552751_2 (ship_types_delivered VARCHAR)
### Question:
What was the delivery date when s2 (lst) type, s2 (frigate) type, c1-m type was delivered?
### Answer:
SELECT 1 AS st_ship_delivery_date FROM table_11552751_2 WHERE ship_types_delivered = "S2 (LST) type, S2 (frigate) type, C1-M type"