Who were all the writers whose episodes had 0.97 million viewers?
CREATE TABLE table_23918997_1 (
    written_by VARCHAR,
    us_viewers__million_ VARCHAR
)
SELECT written_by FROM table_23918997_1 WHERE us_viewers__million_ = "0.97"
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: Who were all the writers whose episodes had 0.97 million viewers? ### Input: CREATE TABLE table_23918997_1 (
    written_by VARCHAR,
    us_viewers__million_ VARCHAR
) ### Response: SELECT written_by FROM table_23918997_1 WHERE us_viewers__million_ = "0.97"