<xsd:group name="Events.model">
    <xsd:annotation>
        <xsd:documentation xml:lang="en">Choice between a trade and a post-trade event.</xsd:documentation>
    </xsd:annotation>
    <xsd:choice>
        <xsd:element name="tradePackage" type="TradePackage" />
        <xsd:sequence>
            <xsd:element name="originatingEvent" type="OriginatingEvent" minOccurs="0" />
            <xsd:element name="trade" type="Trade" minOccurs="0" />
        </xsd:sequence>
        <xsd:element name="amendment" type="TradeAmendmentContent" />
        <xsd:element name="increase" type="TradeNotionalChange" />
        <xsd:sequence>
            <xsd:element name="terminatingEvent" type="TerminatingEvent" minOccurs="0">
                <xsd:annotation>
                    <xsd:documentation xml:lang="en">This may be used to describe why a trade was terminated.</xsd:documentation>
                </xsd:annotation>
            </xsd:element>
            <xsd:element name="termination" type="TradeNotionalChange" minOccurs="0" />
        </xsd:sequence>
        <xsd:element name="novation" type="TradeNovationContent" />
        <xsd:element name="change" type="TradeChangeContent" />
        <xsd:element name="optionExercise" type="OptionExercise">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A structure describing an option exercise event. The optionExercise event supports partial exercise (specify the number of options or amount to exercise), full exercise (use fullExercise flag), as well as the option to request options not to be exercised.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:element name="optionExpiry" type="OptionExpiry" maxOccurs="unbounded">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A structure describing an option expiring event (i.e. passing its last exercise time and becoming worthless.)</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:element name="deClear" type="DeClear">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A structure describing a declear event. The deClear event allows a firm to request that a trade be removed from clearing, or a clearing service to request consent for this, or to report that it has been done.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:element name="withdrawal" type="Withdrawal" />
        <xsd:element ref="additionalEvent">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">The additionalEvent element is an extension/substitution point to customize FpML and add additional events.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
    </xsd:choice>
</xsd:group>