b08000;'>5</span><span style='color:#bf0303;'>)</span>; <i><span style='color:#898887;'>// prints: '(5 * (factorial 4))</span></i>

<i><span style='color:#898887;'>// Some basic data values (e.g. numbers and symbols) when quoted are represented by</span></i>
<i><span style='color:#898887;'>// themselves. This is OK because they are in normal form, i.e. they evaluate</span></i>
<i><span style='color:#898887;'>// to themselves.</span></i>

print <b><span style='color:#bf0303;'>'</span></b>5; <i><span style='c