<optionalEarlyTermination>
<europeanExercise id="exercise0"> </europeanExercise>
...
<cashSettlement id="cashSettlement0">
...
<cashSettlementPaymentDate id="cashSettlementPayment0">
<relativeDate>
...
<dateRelativeTo href="exercise0"/>
</relativeDate>
</cashSettlementPaymentDate>
</cashSettlement>
</optionalEarlyTermination>