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_21 (career_sr VARCHAR)
### Question:
What is 1999, when 2003 is "A", and when Career SR is "0 / 4"?
### Answer:
SELECT 1999 FROM table_name_21 WHERE 2003 = "a" AND career_sr = "0 / 4"