WURCS=2.0/4,22,21/[a2112h-1a_1-5_2*NCC/3=O][a2112h-1b_1-5][a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-2-3-2-3-2-3-2-4-1-3-2-4-1-3-2-4-1-3-2-4-1/a3-b1_a6-s1_b3-c1_d3-e1_d6-o1_f3-g1_f6-k1_h2-i1_h3-j1_k4-l1_l2-m1_l3-n1_o4-p1_p2-q1_p3-r1_s4-t1_t2-u1_t3-v1_c?-d1_e?-f1_g?-h1