   Description
       </th>
       <th>
        Requiredness
       </th>
       <th>
        Default value
       </th>
      </tr>
     </thead>
     <tbody>
      <tr>
       <td>
        1
       </td>
       <td>
        contents
       </td>
       <td>
        <code>
         string
        </code>
       </td>
       <td>
        The contents of the Context. Services should agree
upon what the expected format of the contents are
(e.g. JSON, RDF) between themselves.
       </td>
       <td>
        o