web service data type

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
        <RequestData xmlns="http://tempuri.org/">
            <ID></ID>
            <Reference>TEST0222</Reference>
            <DetailsObject>
                <![CDATA[
<DetailsObject>
    <A1>Party</A1>
    <CustomerType>P</CustomerType>
    <Gender>M</Gender>
    <Customers>
        <Name>Amy</Name>
  <Name>Billy</Name>
    </Customers>
    <NativeNames>
        <NativeName/>
    </NativeNames>
    <Countries>
        <Country>BANGLADESH</Country>
    </Countries>
</DetailsObject>
                ]]>
            </DetailsObject>
   

in DetailsObject field, there is <Countries>, which may contain 1 or multiple <Country> element inside <Countries> field.

how can i know the data of <DetailsObject> and data type of <Countries> in <DetailsObject> in document.