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_50 (rank INTEGER, silver VARCHAR, total VARCHAR, bronze VARCHAR)
### Question:
What is the rank for total less than 5, 1 bronze and less than 1 silver?
### Answer:
SELECT AVG(rank) FROM table_name_50 WHERE total < 5 AND bronze = 1 AND silver < 1