deredlist" type="1">
<li class="listitem">
            Books name are unique identifiers, so we can create a separate <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special">&lt;</span> <span class="identifier">string</span><span class="special">,</span> <span class="identifier">string</span> <span class="special">&gt;</span></code>
            that relates books names with abstracts.
          </li>
<li class="l