<Languages>
    <Language>
        <LanguageCode>EN</LanguageCode>
        <Read>true</Read>
        <Write>true</Write>
        <Speak>true</Speak>
        <Comments>Learned as a second language.</Comments>
    </Language>
    <Language>
        <LanguageCode>FR</LanguageCode>
        <Speak>true</Speak>
    </Language>
</Languages>

Languages

     * English: Ability to read, write, and speak. Learned as a second
       language.
     * French: Ability to speak.

To specify a language, use the appropriate two-letter ISO 639-1 code. HR-XML allows either a two- or three-letter code, but HR-XSL supports only the two-letter codes.

In HR-XSL, the actual values for the Read, Write, and Speak elements are ignored. They are considered true if they are merely specified, as shown in the above example.

The HR-XML website has more documentation.