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_69 (yield VARCHAR, purpose VARCHAR, location VARCHAR)
### Question:
What is the yield in NTS Area U2R when the purpose is weapons development?
### Answer:
SELECT yield FROM table_name_69 WHERE purpose = "weapons development" AND location = "nts area u2r"