Driving scenario: Leading braking
Question: Is there a vehicle directly ahead in the ego lane with brake lights on?
Answer: No
Reasoning: The ego vehicle is driving in a roundabout which is under construction. At the beginning of the sequence, there is a leading vehicle which is taking an exit from the roundabout, causing it to be partially in ego lane. This leading vehicle is braking as it is taking the exit. During the sequence, the ego vehicle also takes the same exit as the leading vehicle and at the end of the sequence both the ego and the leading vehicle have exited the roundabout.