bud[8], bum[8], umb[8], pub[8], dum[7], mud[7], umm[7], bun[7], dup[7], pud[7], pum[7], bru[7], bur[7], dnu[6], nud[6], mun[6], pun[6], dur[6], rud[6], urd[6], mru[6], mur[6], rum[6], nur[5], run[5], urn[5],
bu[6], ud[5], mu[5], nu[4],
