WURCS=2.0/5,5,4/[a2221m-1x_1-5][a2211m-1x_1-5][a1221m-1x_1-5_2*OC][a1122m-1x_1-5_2*OC][a2611m-1x_1-5_2*OC_3*C_4*OC=O]/1-2-3-4-5/a?-b1_b?-c1_c?-d1_d?-e1