buhs[7], hubs[7], rhus[5], uhus[5], urdu[4],
bub[7], buh[6], hub[6], bus[5], hur[4], ruh[4], uhr[4], uhu[4], dur[3], sud[3], uds[3], rus[3], sur[3], urs[3],
hu[3], uh[3], du[2], ud[2], ur[2],
