WURCS=2.0/3,3,2/[a211h-1x_1-5_4*N][a2122h-1a_1-5_2*N][a2122h-1b_1-5_2*N_4*OPO/3O/3=O]/1-2-3/b6-c1_a?-b1*OPO*/3O/3=O