                   lower incisors ~:[than~;as~] dugongs.~%"
                (1+ (signum delta)) (zerop delta))))))
</pre>
<pre class="output">Armadillos have 28 teeth.</pre>
<pre class="output">Marsupial moles have 22 teeth in the lower jaw.</pre>
<pre class="output">Marsupial moles have as many lower incisors as dugongs.</pre>
<pre class="value">NIL</pre>
</div>


  <h4 class="section"><a name="JSON-RPC"></a> JSON-RPC </h4>

<p><a href="http://en.wikipedia.org/wiki/JSON-RPC">JSON-RPC</a> is a lightweight r