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_19 (roll VARCHAR, name VARCHAR, decile VARCHAR)
### Question:
Name the total number of roll for st joseph's school when decile is less than 5
### Answer:
SELECT COUNT(roll) FROM table_name_19 WHERE name = "st joseph's school" AND decile < 5