Container element for all object representation elements and multiple object addresses
Within this element, each object in the material system breakdown structure that is defined as requiring some sort of documentation (i.e. Grund-DTD information) is required to have exactly one element of the type 'object' representing it. Furthermore, if a module is linked to several objects, those objects are grouped with a 'nlok.multobj' element here.
If required by managing software, the addresses may be placed in a separate SGML entity which is included here by a standard SGML entity inclusion.