WURCS=2.0/4,6,6/[a2211m-1a_1-?][a2122h-1b_1-5][ad122A-1b_1-5][a2122h-1a_1-5]/1-2-3-2-4-2/a4-b1_b4-c1_c4-d1_d6-e1_e6-f1_a1-d3~n