C_2 C_3 C_1 B_1.1 B_1.2 B_2 B_3 B_4 B_5 D_1 D_2 A_1.1 A_1.4 A_1.2 A_4 A_1.3 A_3 F_1 E_3 E_1 E_6 G_1