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_1818471_1 (species VARCHAR, afinsa VARCHAR)
### Question:
What is every species when Afinsa is 639?
### Answer:
SELECT species FROM table_1818471_1 WHERE afinsa = 639