<FpML version="4-0" xmlns="http://www.fpml.org/2003/FpML-4-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.fpml.org/2003/FpML-4-0 fpml-main-4-0.xsd" xsi:type="DataDocument">
<trade>
...
<calculationAgent>
<calculationAgentPartyReference href="partyA"/>
</calculationAgent>
</trade>
<party id="partyA"> </party>
<party id="partyB"> </party>
</FpML>