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_47 (goals__2008_ INTEGER, games__2008_ VARCHAR, debut_round VARCHAR)
### Question:
What is the average number of goals with 21 games for a debut round less than 1?
### Answer:
SELECT AVG(goals__2008_) FROM table_name_47 WHERE games__2008_ = 21 AND debut_round < 1