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_67 (round VARCHAR, opponent VARCHAR, venue VARCHAR)
### Question:
What is the round for the opponent CSKA Sofia in Venue A?
### Answer:
SELECT round FROM table_name_67 WHERE opponent = "cska sofia" AND venue = "a"