geod[7], gder[7], ergo[6], gore[6], oger[6], dero[5], redo[5],
dog[6], ego[5], erg[5], gro[5], ogr[5], deo[4], ode[4], der[4], red[4], odr[4], ord[4], rod[4], ero[3],
go[4], de[3], do[3], od[3], eo[2], er[2], re[2], or[2], ro[2],
