SilverStripe\CMS\Model\SiteTree:
  page_one:
    Title: 1
    URLSegment: page-one
    Content: <p>Explicitely false</p>
  page_two:
    Title: 2
    URLSegment: page-two
    Content: <p>Explicitely true</p>
  page_three:
    Title: 3
    URLSegment: page-three
    Content: <p>void</p>
