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_39 (bulgarian_commander VARCHAR, battle VARCHAR)
### Question:
What is the Bulgarian Commander of the Battle of Rusion?
### Answer:
SELECT bulgarian_commander FROM table_name_39 WHERE battle = "battle of rusion"