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 (num_of_shops INTEGER, Num_of_Factories INTEGER, open_year INTEGER)
### Question:
what is the average number of factories and maximum number of shops for manufacturers that opened before 1990.
### Answer:
SELECT MAX(num_of_shops), AVG(Num_of_Factories) FROM manufacturer WHERE open_year < 1990