 So say for example, think of yourself as a student and you come to a hypothesis document or social annotation, and no one has annotated yet. For me, I don't want to be that first person that annotates as a student. So as an instructor or professor if you are providing those guiding questions, which can definitely shape the direction of the discussion keep it on task. That could be a great way that you're modeling best practices, even for your students right. So if I am an as an instructor just annotate something and say this is a great point. That doesn't really help our students but if I say, look at this sentence or think about this question. How would you respond to this or what are your feelings about this. That could be a great guiding question that can really leave the discussion, more effectively for your students.