Prompt
"Generate an image of the MBTA Green Line B, a railway line in Boston, Massachusetts, with its distinctive green color, running through Commonwealth Avenue, with a train approaching or departing from one of its 24 stations, such as Kenmore or Boston College, with a mix of urban and historic architecture in the background, incorporating standard gauge tracks and overhead catenary electrification, under a daytime setting with a subtle representation of the CharlieCard payment system."
