What is the position of the player who is from the United States and has 30 minutes?
CREATE TABLE table_23963781_3 (
    position VARCHAR,
    nationality VARCHAR,
    minutes VARCHAR
)
SELECT position FROM table_23963781_3 WHERE nationality = "United States" AND minutes = 30
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the position of the player who is from the United States and has 30 minutes? ### Input: CREATE TABLE table_23963781_3 (
    position VARCHAR,
    nationality VARCHAR,
    minutes VARCHAR
) ### Response: SELECT position FROM table_23963781_3 WHERE nationality = "United States" AND minutes = 30