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_58 (competition VARCHAR, round VARCHAR, club VARCHAR)
### Question:
Which competition features the 1st round of Club Union Luxembourg?
### Answer:
SELECT competition FROM table_name_58 WHERE round = "1st round" AND club = "union luxembourg"