After you have performed a search and gathered together the potentially relevant items, selected individuals can review the search results. These reviewers read each item, select the appropriate status mark to assign to it, and add a comment as necessary. Items can be reviewed more than once, and other reviewers can add more comments or change the assigned mark.
Some items may have extra marks, called tags, from which you can choose. These tags are available at the bottom of the Review pane and are usually set up especially in response to questions from a judge.