�Do I now also need to assert (likesAsFriend Peter Billy)?</p>
<p style="font-family: Arial, sans-serif; font-size: medium; line-height: normal;">Finally let's assert the ages of Billy and Peter by going back to the Assert page and, in the large text field, enter <tt><span style="font-size: xx-small;">(age Billy (WeeksDuration 11))</span></tt> .</p>
<p style="font-family: Arial, sans-serif; font-size: medium; line-height: normal;"><img alt="Try it yourself! Enter this into your copy of OpenCyc." border="0