No account name for some object type in Metaverse

Experts,

I queried mms_metaverse in FIMSynch DB and found that there is no accountname for following object types.

expectedRuleEntry
synchronizationRule
detectedRuleEntry
organization

I thought accountname is unique attribute for objects in metaverse.

Is it not?

what is the unique attribute in metaverse that it uses internally?

Please suggest.

Thanks,

Mann