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_28846752_4 (runs INTEGER, highest_score VARCHAR)
### Question:
How many runs are there when the highest score is 228*?
### Answer:
SELECT MIN(runs) FROM table_28846752_4 WHERE highest_score = "228*"