Add an example of non-interoperable parsing

Author: handrews

versions/3.1.1.md

@@ -148,7 +148,7 @@ When parsing an OAD, JSON or YAML objects are parsed into specific Objects (such
 * As the Object type implied by its parent Object within the document
 * As a reference target, with the Object type matching the reference source's context
 
-If the same JSON/YAML object is parsed multiple times contexts requiring it to be parsed as _different_ Object types, the resulting behavior is _implementation defined_, and MAY be treated as an error if detected.  For maximum interoperability, it is RECOMMENDED that OpenAPI Description authors avoid such scenarios.
+If the same JSON/YAML object is parsed multiple times contexts requiring it to be parsed as _different_ Object types, the resulting behavior is _implementation defined_, and MAY be treated as an error if detected.  An example would be referencing an empty Schema Object under `#/components/schemas` where a Path Item Object is expected, as an empty object is valid for both types.  For maximum interoperability, it is RECOMMENDED that OpenAPI Description authors avoid such scenarios.
 
 ### <a name="dataTypes"></a>Data Types