For this one, we didn't really have any control in the way the markup was performed after turning over the template to WN.  We gave them the initial structure for examples, but we didn't have any test data when building the template.  They kinda went wild in populating the examples.  Some examples are 3 pages long, and indeed they are structured by example > exercise > problem > solution, but they are doing numbering of elements throughout the book inside examples.  I would say 60% of the book is rendered under example headings. It's incredible.  To change this though Phil would entail remarking up the book. Yikes