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_18173916_6 (friday VARCHAR, wednesday VARCHAR)
### Question:
How many episodes were shown on Friday if 190 Boardwalk Empire was shown on Wednesday?
### Answer:
SELECT COUNT(friday) FROM table_18173916_6 WHERE wednesday = "190 Boardwalk Empire"