WURCS=2.0/3,4,3/[u2211m][u2122h][u211h]/1-1-2-3/a?|b?|c?|d?}-{a?|b?|c?|d?_a?|b?|c?|d?}-{a?|b?|c?|d?_a?|b?|c?|d?}-{a?|b?|c?|d?*OPO*/3O/3=O