            failure_not_closed
                  </p>
                </td>
<td>
                  <p>
                    The geometry is defined as closed, the starting/ending points
                    are not equal (applies to areal geometries only)
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    failure_self_intersections
                  </p>
                </td>
<td>
                  <p>
                    The geometry has invalid self-inters