constrains how applications
        make use of the format, the distinction about whether an Activity
        statement is to be interpreted as a passive notification or as
        an imperative command can vary across implementations.
      </p>

    </section>

    <section id="intransitiveactivities">
      <h2><dfn id="intransitiveactivity">IntransitiveActivity</dfn></h2>

      <p>
        IntransitiveActivity objects are specializations of the <a>Activity</a>
        type that represent intransitive a