AlsoKnownAs: Any other valid OCD IDs that refer to the same division.
Because OCD IDs are meant to be human-readable and at least somewhat predictable, there are occasionally several identifiers for a single division. These identifiers are defined to be equivalent to one another, and one is always indicated as the primary identifier. The primary identifier will be returned in ocd_id above, and any other equivalent valid identifiers will be returned in this list.
For example, if this division's OCD ID is ocd-division/country:us/district:dc, this will contain ocd-division/country:us/state:dc.