WURCS=2.0/1,4,3/[hxxxh]/1-1-1-1/a?|b?|c?|d?}-{a?|b?|c?|d?*OPO*/3O/3=O_a?|b?|c?|d?}-{a?|b?|c?|d?*OPO*/3O/3=O_a?|b?|c?|d?}-{a?|b?|c?|d?*OPO*/3O/3=O