</b> Learning exercises</a>
<ul>
<li class="chapter" data-level="5.4.1" data-path="paths-distance.html"><a href="paths-distance.html#discussion-questions-4"><i class="fa fa-check"></i><b>5.4.1</b> Discussion questions</a></li>
<li class="chapter" data-level="5.4.2" data-path="paths-distance.html"><a href="paths-distance.html#data-exercises-4"><i class="fa fa-check"></i><b>5.4.2</b> Data exercises</a></li>
</ul></li>
</ul></li>
<li class="chapter" data-level="6" data-path="vertex-importance.html"><a href="ve