<input>
<name>Prediction data start</name>
<description>Year for which our target should be predicted</description>
<type>interval</type>
<dates>
<date>
<name>start</name>
<default>01/01/2010</default>
</date>
<date>
<name>end</name>
<default>01/01/2011</default>
</date>
</dates>
</input>
Sample: