kog[6], gon[5], gro[5], ogr[5], nok[4], kor[4], kro[4], okr[4], ork[4], rok[4], kos[4], sok[4], non[3], nor[3], nos[3], son[3], ros[3],
go[4], ko[3], ok[3], no[2], on[2], or[2], ro[2], os[2],
