buce[9], brud[9], burd[9], duce[8], beru[8], bure[8], erbu[8], berd[7], debr[7], ceru[7], rude[7], durr[7], cedr[6], cred[6], dedr[6], dred[6],
buc[8], bud[8], cud[7], dud[7], bru[7], bur[7], ecu[6], edu[6], ued[6], cru[6], dur[6], rud[6], urd[6], ber[5], erb[5], reb[5], brr[5], rur[5], cer[4], der[4], red[4], drr[4],
bu[6], ud[5], be[4], ce[3], de[3], er[2], re[2],
