<?xml version="1.0"?>

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<document id="how_it_works_uml">

  <properties>
    <title>Cactus UML Sequence Diagram</title>
  </properties>

  <body>

    <section title="UML Sequence Diagram">

      <figure src="images/sequence.jpg" alt="UML Sequence Diagram"/>

    </section>

  </body>
</document>