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_58 (effic INTEGER, avg_g VARCHAR)
### Question:
What is the lowest effic with a 58.9 avg/g?
### Answer:
SELECT MIN(effic) FROM table_name_58 WHERE avg_g = 58.9