WURCS=2.0/2,4,4/[uxxxxh_2*N][uxxxxh]/1-2-2-2/a?|b?|c?|d?}*OPO/3O/3=O_a?|b?|c?|d?}-{a?|b?|c?|d?_a?|b?|c?|d?}-{a?|b?|c?|d?_a?|b?|c?|d?}-{a?|b?|c?|d?