The “Models and Context” section contains two very different type of information: where an element may be used (context) and what an element may contain (what may be inside the element). Under the heading “May be contained in”, there is a list of all of the JATS elements that may include the given element as a direct child.

Figure 11. Where may <abstract> be used?

The second kind of information is the content model of the element, that is, what an element may contain. Content model information is available in 3 formats: hierarchy written as a bulleted list in natural language, the content model as given in the DTD for that element (typically useless because it is only parameter entities), and the DTD model after all the parameter entities have been expanded.

Figure 12. Content model of <answer-set>