buk[8], kub[8], bul[8], lub[8], bum[8], umb[8], pub[8], kul[7], luk[7], kum[7], lum[7], mul[7], umm[7], kup[7], puk[7], lup[7], pul[7], pum[7],
bu[6], ku[5], lu[5], ul[5], mu[5],