WURCS=2.0/6,8,7/[a11221h-1a_1-?][a2122h-1b_1-5][a2112h-1b_1-5][a2122h-1b_1-5_2*NCC/3=O][a2112h-1a_1-5_2*NCC/3=O][a11222h-1a_1-5]/1-2-3-4-3-5-6-2/a4-b1_b4-c1_b6-g1_c3-d1_d4-e1_e6-f1_g4-h1