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 manufacturer (open_year VARCHAR, name VARCHAR, num_of_shops VARCHAR)
### Question:
Which manufacturer has the most number of shops? List its name and year of opening.
### Answer:
SELECT open_year, name FROM manufacturer ORDER BY num_of_shops DESC LIMIT 1