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_9 (position VARCHAR, nationality VARCHAR, player VARCHAR)
### Question:
Which position has a Nationality of united states, and a Player of roger powell?
### Answer:
SELECT position FROM table_name_9 WHERE nationality = "united states" AND player = "roger powell"