<xs:element name="RateQualifier">
    <xs:complexType>
        <xs:sequence>
            <xs:choice>
                <xs:element ref="Sizes" maxOccurs="unbounded" />
                <xs:element ref="adsml:Duration" maxOccurs="unbounded" />
                <xs:element name="Positioning" maxOccurs="unbounded">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element ref="adsml-bo:SectionCode" minOccurs="0" />
                            <xs:element ref="adsml:Specifications" minOccurs="0" />
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <xs:element ref="Distribution" maxOccurs="unbounded" />
                <xs:element ref="Frequency" maxOccurs="unbounded" />
                <xs:element ref="Scheduling" maxOccurs="unbounded" />
                <xs:element ref="BuyingVolume" maxOccurs="unbounded" />
                <xs:element ref="GeneralQualifier" maxOccurs="unbounded" />
                <xs:element ref="adsml:Properties" />
            </xs:choice>
            <xs:element ref="PublicationReference" minOccurs="0" maxOccurs="unbounded" />
        </xs:sequence>
    </xs:complexType>
</xs:element>