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_83 (roll INTEGER, name VARCHAR)
### Question:
tell me the average roll for pirinoa school.
### Answer:
SELECT AVG(roll) FROM table_name_83 WHERE name = "pirinoa school"