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_54 (pct INTEGER, independent VARCHAR, years VARCHAR)
### Question:
What is the lowest PCT when Old Dominion is the independent and the years is more than 4?
### Answer:
SELECT MIN(pct) FROM table_name_54 WHERE independent = "old dominion" AND years > 4