Prompt
"Generate an image of a light rail train on an elevated track, with a cityscape of Greater Boston in the background, specifically showing the 4.7-mile MBTA Green Line Extension route with its 7 stations, including Union Square, Lechmere, and Medford/Tufts, with a mix of urban and natural environments, incorporating elements that reflect the project's goals of expanding public transit access, reducing traffic congestion, and improving air quality, in a realistic style."