item-description-relation.md

+---------------------+                 +-----------+                 +-----------+
|      Document       |<---exemplarOf---+           +----foaf:page--->| Document  |
|     (abstract)      |                 | frbr:Item |                 | (Website) |
|                     |-----exemplar--->|           |<---foaf:topic---+           |
+---------------------+                 +--------+--+                 +-----------+
          ^                                   ^
          |                                   |
    foaf:primaryTopic                  foaf:primaryTopic 
    foaf:primaryTopicOf                foaf:primaryTopicOf
          |                                   |
          |                                   |
          v                                   v
+-----------------------+        +-----------------------+
|      Document         |        |      Document         |
| (Title Description)   |        | (Holding Description) |
+-----------------------+        +-----------------------+