CREATE TABLE table_name_94 (liberal_candidates VARCHAR(255), seats_won VARCHAR(255), liberal_leader VARCHAR(255), _percentage_of_popular_vote VARCHAR(255))
How many Liberal candidates have a Liberal leader of pearson, and a % of popular vote of 40.2%, and Seats won smaller than 131?
    
SQL: SELECT COUNT(liberal_candidates) FROM table_name_94 WHERE liberal_leader = "pearson" AND _percentage_of_popular_vote = "40.2%" AND seats_won < 131