If we have a look at the class SingletonParagraphTemplateModel, we can see that in the execute method has two method calls, one to generate a single paragraph in the main area (see stkSiteMap template) and the other one to generate any number of paragraphs in the extras area.
See below the template configuration for the main area auto generated sitemap paragraph
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Nice thing is that you can extend this class or implement your own to generate any paragraph in any area of the page.
Below is the template configuration for the extras area auto generated paragraphs.
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