OTE, PUF, QVG, RWH, ?

AFKPU, BGLQV, CHMRW,?

A, C, F, H, ?, M

CAT, ECV, GEX, ?

ANN, CPP, ERR, ?

BCB, DED, FGF, HIH, ?

AGON, BHPO, ?, DJRQ, EKSR

A, P, C, Q, E, R, G, ?, ?

AKU, FPZ, ?, PZJ, UEO, ZJT