anchor.diff:  
   The `curl` requests listed in the sections below add and remove orgs and spaces from isolation segments. Only admins can perform these operations.
   
  -### <a id="add_is"></a> Add Orgs or Spaces to an Isolation Segment
  -
  -When you add an org or space to one isolation segment, it becomes the default isolation segment for that org or space unless another default is already set. In the data field of the `curl` command, specify one or more orgs by GUID to add to the isolation segment.
  +### <a id="add_org_is"></a> Add Orgs to an Isolation Segment
  +
  +When you add an org to one isolation segment, it becomes the default isolation segment for that org unless another default is already set. In the data field of the `curl` command, specify one or more orgs by GUID to add to the isolation segment.
   
   The following example adds two orgs to an isolation segment:
   <pre class="terminal">
  
positive.code: }
  </pre>
  
  To add spaces instead of orgs, send the same command to the `/relationships/spaces` endpoint instead of the `relationships/organizations` endpoint.
  
  
  ### <a id="revoke_is"></a> Remove Orgs or Spaces from an Isolation Segment
  
  The following example removes two orgs from an isolation segment:
  <pre class="terminal">
  
negative.code: HTTP/1.1 204 No Content
  </pre>
  
  <p class='note'><strong>Note</strong>: You cannot remove an org from an isolation segment if the isolation segment contains a space within that org or if it is the default isolation segment for that org.</p>