
  <tr><td><code class="lisp-type">float</code></td>
  <td class="map">&harr;</td>
    <td rowspan="2"><code class="json">Number</code>, with
      <code class="json">Frac</code> or <code class="json">Exp</code>
      parts</td></tr>
  <tr><td><code class="lisp-type">rational</code></td>
  <td class="map">&rarr;<span class="cc">   </span></td>
  </tr>
  <tr><td>the value <code class="lisp">t</code></td>
  <td class="map">&harr;</td>
    <td><code class="json-literal">true</code></td></tr>
  <tr><td rowspan=