<xs:group name="MaterialsTransactions">
    <xs:choice>
        <xs:element ref="AdMaterial" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialResponse" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialStatus" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialStatusEnquiry" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialKillOrder" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialKillOrderResponse" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialResendRequest" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialDeliveryOrder" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialDeliveryOrderResponse" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialDeliveryOrderChange" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialDeliveryOrderStatus" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialDeliveryOrderStatusEnquiry" maxOccurs="unbounded" />
        <xs:element ref="AdMaterialDeliveryOrderCancellation" maxOccurs="unbounded" />
        <xs:element ref="adsml:AdministrativeResponse" />
    </xs:choice>
</xs:group>