The design is the visual features of a train shown in solid lines in the drawings, whether those features are features of one of shape, configuration, ornament or pattern or are a combination of any of these features.Figure 1 is a front view of a train; the rear view is a symmetrical mirror image of the first view;Figure 2 is a left view of the train of Figure 1; the right view is a symmetrical mirror image of the left view;Figure 3 is a top view of the train of Figure 1;Figure 4 is a first perspective view of the train of Figure 1; andFigure 5 is a second perspective view of the train of Figure 1.Drawings of the design are included.