In which part is the train, the bottom or the top?
The train is in the bottom of the image.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    9
2     0  to the right of    1
3     1  to the right of    8
4     1   to the left of    6
5     1  to the right of    5
6     1   to the left of    4
7     1   to the left of    0
8     2   to the left of    5
9     2   to the left of    9
10    4  to the right of    9
11    4   to the left of    0
12    4  to the right of    1
13    5   to the left of    9
14    5  to the right of    2
15    5   to the left of    6
16    5   to the left of    1
17    6  to the right of    9
18    6  to the right of    1
19    6  to the right of    8
20    6  to the right of    5
21    8   to the left of    9
22    8   to the left of    6
23    8   to the left of    1
24    9  to the right of    5
25    9   to the left of    0
26    9   to the left of    4
27    9  to the right of    8
28    9   to the left of    6
29    9  to the right of    2