WURCS=2.0/4,4,3/[h1122h_2-5][a2121A-1a_1-5][a2122h-1a_1-5_2*NSO/3=O/3=O_6*OSO/3=O/3=O][a2121A-1a_1-5_2*OSO/3=O/3=O]/1-2-3-4/a4-b1_b4-c1_c4-d1