WURCS=2.0/3,3,2/[a1221m-1x_1-5][a2122h-1x_1-5_2*NCC/3=O][a2112h-1x_1-5_2*NCC/3=O]/1-2-3/a?|b?|c?}-{a?|b?|c?_a?|b?|c?}-{a?|b?|c?