{"knowledge_schema": {"broad_category": "Physics \u2192 Kinematics \u2192 Motion Analysis", "refinement": "This problem involves analyzing the motion of an object (the moth) in a linear environment with constant speed and external stimuli (the blinking LEDs).", "specific_scope": "The focus is on calculating the moth's displacement at a specific time when the LED at the eastern end blinks, considering the moth's speed and the timing of the LED blinking sequence.", "goal": "Determine the exact position of the moth in relation to the tunnel when the eastern LED blinks."}, "summary": "This problem requires understanding the motion of a moth in a wind tunnel while considering the timing of blinking LEDs. The moth flies towards a pheromone at a constant speed, and we need to calculate its displacement when the LED at the eastern end blinks. By analyzing the timing of the LED sequence and the moth's speed, we can determine the moth's position at that moment. The goal is to find the correct displacement from the starting point to the position of the moth when the eastern LED blinks."}