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_37 (purpose VARCHAR, yield VARCHAR, location VARCHAR, elevation_ VARCHAR, _height VARCHAR)
### Question:
Which Purpose has an Elevation + Height of 0 + metres (ft), a Location of bikini, namu (charlie), and a Yield of 220 kt?
### Answer:
SELECT purpose FROM table_name_37 WHERE elevation_ + _height = "0 + metres (ft)" AND location = "bikini, namu (charlie)" AND yield = "220 kt"