Answer:
Adding a title associating the keywords with the solar system.
Step-by-step explanation:
In this question, we are given a list of planets that are found in the solar system. However, if we are not aware of what these words are, we would be unable to understand why it is that these words are grouped together. It would all seem a collection of random words. Therefore, in order for us to be able to interpret the information in the graphic organizer better, we would need a title that tells us why these words are associated, such as "Planets in the Solar System."