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_97 (last_yr INTEGER, yr_plyf INTEGER)
### Question:
What is the earliest last year with a yr plyf less than 0?
### Answer:
SELECT MIN(last_yr) FROM table_name_97 WHERE yr_plyf < 0