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_17968229_1 (home__2nd_leg_ VARCHAR)
### Question:
For home of River Plate, what is the first leg listed?
### Answer:
SELECT 1 AS st_leg FROM table_17968229_1 WHERE home__2nd_leg_ = "River Plate"