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_55 (rank INTEGER, nation VARCHAR, bronze VARCHAR)
### Question:
What is the lowest rank of the United States, with fewer than 4 bronze medals?
### Answer:
SELECT MIN(rank) FROM table_name_55 WHERE nation = "united states" AND bronze < 4