r5rs-Z-H-9.html#%_sec_6.6.3">6.6.3</a>)
generates them.  Together, they provide an elegant and powerful
input/output facility.</p>
<p>
Note that the sequence of characters ``<tt>(+ 2 6)</tt>'' is <em>not</em> an
external representation of the integer 8, even though it <em>is</em> an
expression evaluating to the integer 8; rather, it is an external
representation of a three-element list, the elements of which are the symbol
<tt>+</tt> and the integers 2 and 6.  Scheme's syntax has the property that
any seque