Are there any trains or windows in this image?
Yes, there is a window.
    src        edge_attr  dst
0     0   to the left of    2
1     0  to the right of    1
2     0   to the left of    3
3     1   to the left of    0
4     2  to the right of    3
5     2  to the right of    0
6     2   to the left of    5
7     3  to the right of    0
8     3   to the left of    5
9     3   to the left of    2
10    5  to the right of    3
11    5  to the right of    2