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_63 (nationality___opponent VARCHAR, competition VARCHAR, result VARCHAR)
### Question:
Name the Nationality / Opponent of the Competition of welsh rugby union challenge trophy and a Result of 38-29?
### Answer:
SELECT nationality___opponent FROM table_name_63 WHERE competition = "welsh rugby union challenge trophy" AND result = "38-29"