part1: all word pairs with lengths <= 6 evaluations 174636 minimum (Fraction(-84, 1), 'NNNNNN', 'EEEEWW', Fraction(-1, 1))
part2: random balanced pairs 300 max half 10 min value -52040.95556833116 ('SSSNSNNSNSNNNNSSNS', 'EEEEEEWWEWEEWWEWWWWW', Fraction(-2, 5))
