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_15 (round_1 INTEGER, place VARCHAR, year VARCHAR)
### Question:
What is the lowest round with a place of t15 in a year earlier than 1998?
### Answer:
SELECT MIN(round_1) FROM table_name_15 WHERE place = "t15" AND year < 1998