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_11793221_2 (unit VARCHAR, commander VARCHAR)
### Question:
Which units are commanded by Lieutenant Colonel Francis Hepburn?
### Answer:
SELECT unit FROM table_11793221_2 WHERE commander = "Lieutenant Colonel Francis Hepburn"