bugu[12], bumu[11], umbu[11], bogu[10], bomu[9], umbo[9], gumo[9], ogum[9],
bug[9], gub[9], buu[9], bum[8], umb[8], gum[8], muu[8], obu[7], bom[6], mob[6],
bu[6], gu[6], uu[6], mu[5], bo[4], go[4], om[3],
