pace</summary>
          <fieldset>
            <label class="form-control">
              <input name="space" value="" type="radio" checked="checked">
              Any </label>
            <label class="form-control">
              <input name="space" value="consuming" type="radio">
              Space-Consuming </label>
            <label class="form-control">
              <input name="space" value="non-consuming" type="radio">
              Not Space-Consuming
            </label>
          </fieldset>