<xs:element name="InterDb">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="Source" type="ProcessingUnitStructure" />
            <xs:element name="Destination" type="ProcessingUnitStructure" />
            <xs:choice>
                <xs:element name="Request">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="Action" type="xs:token" />
                            <xs:element name="ActionTime" minOccurs="0">
                                <xs:simpleType>
                                    <xs:union memberTypes="xs:dateTime xs:date" />
                                </xs:simpleType>
                            </xs:element>
                            <xs:choice>
                                <xs:element ref="VoterRegistration" minOccurs="0" maxOccurs="unbounded" />
                                <xs:element ref="Candidate" minOccurs="0" maxOccurs="unbounded" />
                            </xs:choice>
                            <xs:any namespace="##other" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <xs:element name="Response">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="Action" type="xs:token" minOccurs="0" />
                            <xs:element name="ActionedTime" minOccurs="0">
                                <xs:simpleType>
                                    <xs:union memberTypes="xs:dateTime xs:date" />
                                </xs:simpleType>
                            </xs:element>
                            <xs:choice>
                                <xs:element name="VoterRegistration" minOccurs="0" maxOccurs="unbounded">
                                    <xs:complexType>
                                        <xs:complexContent>
                                            <xs:extension base="VoterRegistrationStructure">
                                                <xs:sequence minOccurs="0">
                                                    <xs:element ref="Result" />
                                                </xs:sequence>
                                            </xs:extension>
                                        </xs:complexContent>
                                    </xs:complexType>
                                </xs:element>
                                <xs:element name="Candidate" minOccurs="0" maxOccurs="unbounded">
                                    <xs:complexType>
                                        <xs:complexContent>
                                            <xs:extension base="CandidateStructure">
                                                <xs:sequence minOccurs="0">
                                                    <xs:element ref="Result" />
                                                </xs:sequence>
                                            </xs:extension>
                                        </xs:complexContent>
                                    </xs:complexType>
                                </xs:element>
                            </xs:choice>
                            <xs:any namespace="##other" minOccurs="0" maxOccurs="unbounded" />
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
            </xs:choice>
        </xs:sequence>
    </xs:complexType>
</xs:element>