What episode in the season was episode us18 in the series?
CREATE TABLE table_19897294_11 (
    no_in_season VARCHAR,
    no_in_series VARCHAR
)
SELECT COUNT(no_in_season) FROM table_19897294_11 WHERE no_in_series = "US18"
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 episode in the season was episode us18 in the series? ### Input: CREATE TABLE table_19897294_11 (
    no_in_season VARCHAR,
    no_in_series VARCHAR
) ### Response: SELECT COUNT(no_in_season) FROM table_19897294_11 WHERE no_in_series = "US18"