In other cases, the toponym should be selected from the historical toponyms of the area. In many cases, there are historical administrative structures that have encompassed the area of the merging municipalities. If such names are unusable, the name of some the most prominent villages in the area should be used. To reduce the possibility of confusion, the new name should not include the name of the province or the region. In no case should the name be made up of two parts, because the use of such name is grammatically difficult in Finnish language. The names of the merger projects or frivolous names should also be avoided at all costs.