question: Name the highest Comp which has a Yds/game larger than 0, bostick, and a Rating smaller than 91.77?
answer: SELECT MAX(comp) FROM table_name_19 WHERE yds_game > 0 AND name = "bostick" AND rating < 91.77
context: CREATE TABLE table_name_19 (comp INTEGER, rating VARCHAR, yds_game VARCHAR, name VARCHAR)