Are there both a train and a fence in this photo?
Yes, there are both a train and a fence.
    src        edge_attr  dst
0     0               by   15
1     0               by   16
2     0  to the right of    4
3     1  to the right of   13
4     1   to the left of   14
5     2  to the right of   11
6     4               by    6
7     4   to the left of   11
8     4   to the left of   15
9     4   to the left of    0
10    4   to the left of   16
11    5   to the left of   10
12    5   to the left of    9
13    5               on    7
14    5   to the left of   12
15    6   to the left of   11
16    8   to the left of   12
17    8  to the right of    9
18    9   to the left of    8
19    9   to the left of   12
20    9  to the right of    5
21    9   to the left of   10
22   10  to the right of    5
23   10  to the right of    9
24   10   to the left of   12
25   11   to the left of    2
26   11  to the right of    6
27   11  to the right of    4
28   12  to the right of   10
29   12  to the right of    8
30   12  to the right of    5
31   12  to the right of    9
32   13   to the left of    1
33   14  to the right of    1
34   15  to the right of    4
35   16  to the right of    4