KEX11(K)A A,KEY TRAPPED EXCHANGE UNIT
KEX11(K)L L,KEY TRAPPED EXCHANGE UNIT
KEX11(O)P P,KEY TRAPPED EXCHANGE UNIT
KEX11(T)V V,KEY TRAPPED EXCHANGE UNIT
KEX11(V)W W,KEY TRAPPED EXCHANGE UNIT
KEX11(X)Y Y,KEY TRAPPED EXCHANGE UNIT
KEX12(A)B B B,KEY TRAPPED EXCHANGE UNIT
KEX12(A)B C D,KEY TRAPPED EXCHANGE UNIT