An entry in a dictionary of definitions that contains a GML object which references a remote definition object. This entry
                                 is expected to be convenient in allowing multiple elements in one XML document to contain short (abbreviated XPointer) references,
                                 which are resolved to an external definition provided in a Dictionary element in the same XML document. Specialized descendents
                                 of this dictionaryEntry might be restricted in an application schema to allow only including specified types of definitions
                                 as valid entries in a dictionary.