scription
       </th>
       <th>
        Requiredness
       </th>
       <th>
        Default value
       </th>
      </tr>
     </thead>
     <tbody>
      <tr>
       <td>
        1
       </td>
       <td>
        alternateURL
       </td>
       <td>
        <code>
         string
        </code>
       </td>
       <td>
        This field specifies the URL of the article, if published online. In some
cases, such as with the New York Times, when this field is present,
the URL is preferred to the URL