Question: My .xml structure may have the following data:

```
<entry id="one-string">
            <class>nmWinMultiReports_main</class>
            <classParams>string</classParams>
         </entry>
<entry id="multiple-elements">
            <class>nmJavaScript_main</class>
            <classParams>
               <pluginid>monitorPlugin</pluginid>
               <bla>string</bla>
               <tag>abc</tag>
            </classParams>
         </entry>

```

How do I define the .dtd file to allow `classParams` to either 1. be a string or 2. multiple sub elements (each once)?

I tried:

> 
> 
> ```
> <!ELEMENT class ( #PCDATA ) >
> <!ELEMENT classParams ( #PCDATA | pluginid | bla | tag ) >
>          <!ELEMENT pluginid ( #PCDATA ) >
>          <!ELEMENT bla ( #PCDATA ) >
>          <!ELEMENT tag ( #PCDATA ) >
> 
> ```
> 
>

Answer: 
I made it:

```
<!ELEMENT classParams ( #PCDATA | pluginid | bla | tag )* >

```
You can achieve it by this way as well:

```
<!ELEMENT classParams ANY>

```