Table schema:
CREATE TABLE table_name_22 (finish VARCHAR, franchise VARCHAR, year VARCHAR, league VARCHAR, percentage VARCHAR)

Question: What was the Finish when NL was the League, the Percentage was under 0.726, the Year was larger than 1897, and the Franchies was the Pittsburgh Pirates?
SQL: SELECT finish FROM table_name_22 WHERE league = "nl" AND percentage < 0.726 AND year > 1897 AND franchise = "pittsburgh pirates"