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_name_78 (year VARCHAR, day_of_week VARCHAR, rank VARCHAR)
### Question:
What is the year of the movie with an opening day on Friday with a rank 10?
### Answer:
SELECT COUNT(year) FROM table_name_78 WHERE day_of_week = "friday" AND rank = 10