WURCS=2.0/4,5,4/[a2122h-1x_1-5_2*N][a2122h-1b_1-5_2*N][a1122h-1b_1-5][a1122h-1a_1-5]/1-2-3-4-4/a4-b1_b4-c1_c3-d1_c6-e1