<Countries>
    <Country id="1" name="Switzerland" population="8600000">
        <mainCities>
            <City name="Zurich" population="415000" />
            <City name="Geneva" population="200000" />
        </mainCities>
        <languages>
            <language>German</language>
            <language>French</language>
            <language>Italian</language>
            <language>Romansh</language>
        </languages>
    </Country>
    <Country id="2" name="France" population="67000000">
        <mainCities>
            <City name="Paris" population="2148000" />
            <City name="Marseille" population="861000" />
        </mainCities>
        <languages>
            <language>French</language>
        </languages>
    </Country>
    <Country id="3" name="Germany" population="83000000">
        <mainCities>
            <City name="Berlin" population="3645000" />
            <City name="Hamburg" population="1841000" />
        </mainCities>
        <languages>
            <language>German</language>
        </languages>
    </Country>
    <Country id="4" name="Italy" population="60000000">
        <mainCities>
            <City name="Rome" population="2873000" />
            <City name="Milan" population="1366000" />
        </mainCities>
        <languages>
            <language>Italian</language>
        </languages>
    </Country>
</Countries>