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_40 (name_and_flag VARCHAR, water_area__km_2__ VARCHAR)
### Question:
Which province and flag has a water area (km 2) of 0?
### Answer:
SELECT name_and_flag FROM table_name_40 WHERE water_area__km_2__ = 0