buc[8], bud[8], bul[8], lub[8], cud[7], lud[7], bun[7], bus[7], dnu[6], nud[6], lnu[6], lun[6], nul[6], dwu[6], lwu[6], ulw[6], snu[5], wun[5], suw[5],
bu[6], ud[5], lu[5], ul[5], nu[4], su[4], wu[4],
