bug[9], gub[9], jug[9], bum[8], umb[8], gum[8], jum[8], ujm[8], pub[8], pum[7], bru[7], bur[7], gur[7], rug[7], jur[7], ruj[7], wuj[7], mru[6], mur[6], rum[6],
bu[6], gu[6], mu[5], wu[4],