26
A, A negative
B, B positive
C, C negative
D, D negative
E, E negative
F, F negative
G, G positive
H, H negative
I, I negative
J, J negative
K, K positive
L, L negative
M, M positive
N, N positive
O, O negative
P, P positive
Q, Q negative
R, R negative
S, S positive
T, T negative
U, U negative
V, V positive
W, W negative
X, X positive
Y, Y positive
Z, Z negative
