x1 = AA x2 = AAp x3 = W x4 = WAA x5 = WAAp x6 = WWAA x7 = WWAAp x8 = TT x9 = TTW x10 = TTWW x11 = TTWAA x12 = TTWAAp x13 = TTAA x14 = TTAAp x15 = TTWWAA x16 = TTWWAAp x17 = Y x18 = Yp x19 = Z x20 = B x21 = Bp x22 = SetYp