        on an object</i></a></font>
        <blockquote> A specialization of both <a
            href="./doing-vocab.html#Action">#$Action</a> and <a
            href="./top-vocab.html#PhysicalEvent">#$PhysicalEvent;</a>
            the collection of physical events in which some doer acts on
            an object. Each instance of <a
            href="./doing-vocab.html#ActionOnObject">#$ActionOnObject</a>
            is an action in which both the roles of <a
            href="./actor-vocab.html#doneBy">#