You can determine the name and description of a dot's event by pressing the Control key and clicking on the dot. The chart is updated each time you complete elicitation questions for a focal event. The chart also tracks your progress in answering elicitation questions about a focal event by using different colors for dots. Black dots are events whose relation to the focal event is yet to be determined. A green dot shows the structural position of the event currently being considered in regard to its linkage to the focal event.
Yellow dots show events whose linkage to the focal event is known.
The linkage information may be a direct result of your answer to a linkage question, or the information may have been deduced from the logical structure of events.