Who was the network who had Ken Squier as a host and 13.9 million viewers?
CREATE TABLE table_52446 (
    "Year" real,
    "Network" text,
    "Lap-by-lap" text,
    "Color commentator(s)" text,
    "Pit reporters" text,
    "Host" text,
    "Ratings" text,
    "Viewers" text
)
SELECT "Network" FROM table_52446 WHERE "Host" = 'ken squier' AND "Viewers" = '13.9 million'
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 was the network who had Ken Squier as a host and 13.9 million viewers? ### Input: CREATE TABLE table_52446 (
    "Year" real,
    "Network" text,
    "Lap-by-lap" text,
    "Color commentator(s)" text,
    "Pit reporters" text,
    "Host" text,
    "Ratings" text,
    "Viewers" text
) ### Response: SELECT "Network" FROM table_52446 WHERE "Host" = 'ken squier' AND "Viewers" = '13.9 million'