brum[9], rumb[9], umbr[9], biur[8], mbir[7], miru[7], urim[7],
bub[9], bum[8], umb[8], bib[7], bru[7], bur[7], bim[6], mru[6], mur[6], rum[6], rui[5], mir[4],
bu[6], mu[5], bi[4], im[3], mi[3],
