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 shipments (order_id VARCHAR, shipment_date INTEGER)
### Question:
Find the ids of orders which are shipped after 2000-01-01.
### Answer:
SELECT order_id FROM shipments WHERE shipment_date > "2000-01-01"