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_21 (s390x VARCHAR, ia64 VARCHAR, alpha VARCHAR)
### Question:
Which s390x contains a yes ia64 and a no for alpha?
### Answer:
SELECT s390x FROM table_name_21 WHERE ia64 = "yes" AND alpha = "no"