Comments provide a place to add any text to a result. This is often extra information, clarifications, opinions, details, or reviews. Comments are searched with every query automatically, so they can help find relevant information. However, because of their free-form nature, comments are not suited for navigation using refinements and similar situations. No structure or meaning is imposed by default on comments. You can change the labels or establish conventions within your organization about how comment annotations should be used.
To add comments to the search results in your application, open the display that is associated with your project. This tutorial uses a project named collab-tutorial and a display named collab-tutorial-display.
A screen like the one shown in Figure 2 displays. Do a search in your application and check to see that the comment annotations now appear with the results. See the section on Using a Collaborative Search Application for more information about how the end-user display works.

Proceed to the Adding Rating or Voting to a Display.