CREATE TABLE table_name_57 (s_touchdown VARCHAR(255), average VARCHAR(255), rec VARCHAR(255), opponent VARCHAR(255))
How many Touchdowns have a rec of 10, and an Opponent of oregon state, and an Average smaller than 19.7?
    
SQL: SELECT COUNT(s_touchdown) FROM table_name_57 WHERE rec = 10 AND opponent = "oregon state" AND average < 19.7