<xf:input ref="citizen_firstname" incremental="true">
<xf:label ref="instance('resources')/texts/citizen_firstname/label"/>
<xf:hint ref="instance('resources')/texts/citizen_firstname/hint" />
<xf:alert ref="instance('resources')/texts/citizen_firstname/alert"/>
<xf:help ref="instance('resources')/texts/citizen_firstname/help" />
</xf:input>