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 visitor (name VARCHAR, Level_of_membership INTEGER, age VARCHAR)
### Question:
Find the name and membership level of the visitors whose membership level is higher than 4, and sort by their age from old to young.
### Answer:
SELECT name, Level_of_membership FROM visitor WHERE Level_of_membership > 4 ORDER BY age DESC