What is the earliest year with less than 45 points for Yamaha team in 21st rank?
CREATE TABLE table_name_49 (year INTEGER, rank VARCHAR, points VARCHAR, team VARCHAR)
SELECT MIN(year) FROM table_name_49 WHERE points < 45 AND team = "yamaha" AND rank = "21st"
### Context: CREATE TABLE table_name_49 (year INTEGER, rank VARCHAR, points VARCHAR, team VARCHAR) ### Question: What is the earliest year with less than 45 points for Yamaha team in 21st rank? ### Answer: SELECT MIN(year) FROM table_name_49 WHERE points < 45 AND team = "yamaha" AND rank = "21st"