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_62 (nationality VARCHAR, round VARCHAR, time VARCHAR)
### Question:
What was the nationality of the swimmer in the semifinal with a time of 29.51?
### Answer:
SELECT nationality FROM table_name_62 WHERE round = "semifinal" AND time = "29.51"