s (although particular
implementations may define representations for them).</p>
<p>
An external representation may be written in a program to obtain the
corresponding object (see <tt>quote</tt>, section&nbsp;<a href="r5rs-Z-H-7.html#%_sec_4.1.2">4.1.2</a>).</p>
<p>
External representations can also be used for input and output.  The
procedure <tt>read</tt> (section&nbsp;<a href="r5rs-Z-H-9.html#%_sec_6.6.2">6.6.2</a>) parses external
representations, and the procedure <tt>write</tt> (section&nbsp;<a href="