28. Sandi Bacon
A = aaaaa N = abbaa
B = aaaab O = abbab
C = aaaba P = abbba
D = aaabb Q = abbbb
E = aabaa R = baaaa
F = aabab S = baaab
G = aabba T = baaba
H = aabbb U/V = baabb
I/J = abaaa W = babaa
K = abaab X = babab
L = ababa Y = babba
M = ababb Z =babbb