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_16 (champion VARCHAR, llws VARCHAR, city VARCHAR)
### Question:
Which champion has a Group Stage LLWS in Russellville?
### Answer:
SELECT champion FROM table_name_16 WHERE llws = "group stage" AND city = "russellville"