WURCS=2.0/4,4,3/[u2211m][u2122h][u2112h][hxh]/1-2-3-4/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