def is_highlighted_ins(e):
    """Returns True if e matches the following pattern:

      <ins>highlighted</ins> text:

    See `fragment_chunks` comment for the details
    """
    if len(e) != 0:
        return False

    if not e.text:
        return False

    if e.text != 'highlighted':
        return False

    if not e.tail:
        return False

    if not e.tail.startswith(' text:'):
        return False

    return True