                   </planet>
                </planets>
            </xf:instance>
            <xf:instance id="ui">
                <ui>
                    <valid/>
                    <edited-planet/>
                </ui>
            </xf:instance>
            <xf:bind ref="instance('ui')/edited-planet/planet/description" required="true()"/>
            <xf:action ev:event="xforms-model-construct-done" iterate="instance('planets')/planet/description">
                <xf:setvalue ref="." value="normaliz