Container element for description of and pointer to additional data files that contain information directly supportive of the document (for example, audio clip, applet, raw research data).
The following, in order:
<object-id> Object Identifier, zero or more
<label> Label (of an Equation, Figure, Reference, etc.), zero or one
<caption> Caption of a Figure, Table, etc., zero or more
Any combination of:
Any combination of:
Any combination of: