grubb[10], grubt[8],
burg[7], grub[7], bunt[6], brut[6], trub[6], gurt[5], trug[5], turn[4],
pub[8], bub[7], bug[6], pur[6], gnu[4], gur[4], gut[4], nur[3], run[3], nut[3], tun[3],
nu[2], ur[2], tu[2],
