Table:Object    Table:Properties            Table:Object_Properties
------------    ----------------            -----------------------
object_id       property_id                 object_id
object_type     property_name (eg flowers)  property_id
...             property_type (eg text)     value
...                                         (or)
                                            text_value
                                            blob_value
                                            date_value
                                            boolean_value
                                            etc