bub[9], hub[9], buk[8], kub[8], huk[8], bul[8], lub[8], bum[8], umb[8], uhm[8], mhm[7], kul[7], luk[7], kum[7], lum[7], mul[7], umm[7],
bu[6], hu[6], hm[5], ku[5], lu[5], ul[5], mu[5],