Are there either any trains or cars in this photo?
Yes, there is a train.
    src        edge_attr  dst
0     0   to the left of    1
1     1  to the right of    0
2     2             near    8
3     3   to the left of    8
4     4   to the left of    6
5     4  to the right of   12
6     5  to the right of    7
7     5  to the right of    8
8     6  to the right of    4
9     6  to the right of   12
10    7   to the left of    5
11    7   to the left of   11
12    8   to the left of   11
13    8   to the left of    5
14    8  to the right of    3
15    8  to the right of   12
16    8             near    2
17   11  to the right of    7
18   11  to the right of    8
19   12   to the left of    6
20   12   to the left of    8
21   12   to the left of    4