fob[9], efy[8], efa[7], efo[7], faz[7], fez[7], aby[6], boy[6], oby[6], bzy[6], abo[5], boa[5], oba[5], baz[5], bez[5], ezy[4], ozy[4], eza[3], oaz[3], ezo[3], zza[3], zez[3],
fa[6], ef[6], fe[6], by[5], ba[4], be[4], bo[4], eo[2], za[2], ez[2], ze[2], oz[2],