unnamed section
This section has role of presentation, which should remove all aria semantics.
This heading is not directly associated with the enclosing section, so will not be mapped to its accessible name.
This heading is directly associated with the enclosing section via aria-labelledby, so should be mapped to its accessible name.
This section's accessible name should come from the aria-label attribute. Only Jaws supports this.
... contents of outer section ...
... contents of inner section ...
... contents of nested inner section ...