WURCS=2.0/5,5,5/[a2122h-1b_1-5][a2211m-1a_1-?][a2122A-1b_1-5][a2122h-1b_1-5_?*OCC/3=O][a2211m-1a_1-5]/1-2-3-4-5/a3-b1_a4-c1_c4-d1_d3-e1_a1-e4~n