n Activity
        Streams 2.0 document is Left-to-Right. The base direction of individual
        natural language values MAY be modified as described below.
      </p>

      <p>
        When specifying bidirectional text for a natural language value,
        and the base direction of the text cannot be correctly identified by
        the first strong directional character of that text, publishers SHOULD
        explicitly identify the default direction either by prefixing the value
        with an approp