gurrt[6], gurts[6], trugs[6], surrt[5],
gurr[5], grus[5], gurt[5], trug[5], guts[5], surr[4], stur[4], surt[4], urst[4],
gur[4], gut[4], rus[3], sur[3], urs[3],
st[2], ur[2], tu[2],
