bul[8], lub[8], bum[8], umb[8], lum[7], mul[7], bun[7], bus[7], lnu[6], lun[6], nul[6], mun[6], mus[6], sum[6], lwu[6], ulw[6], snu[5], wun[5], suw[5],
bu[6], lu[5], ul[5], mu[5], nu[4], su[4], wu[4],
