In which part is the train, the top or the bottom?
The train is in the top of the image.
   src        edge_attr  dst
0    2          wearing    3
1    2          wearing    4
2    2          holding    1
3    2   to the left of    7
4    4   to the left of    7
5    7  to the right of    2
6    7  to the right of    4