What's in front of the train?
The railroad tracks are in front of the train.
    src        edge_attr  dst
0     0            below    7
1     0   to the left of    8
2     0           behind    1
3     0            under    9
4     0            above    1
5     0            below    9
6     0               on    1
7     0  to the right of    6
8     0  to the right of   10
9     1            below    0
10    1             near    4
11    1             near    5
12    1      in front of    0
13    1             near    8
14    1  to the right of   11
15    1  to the right of   10
16    2  to the right of   10
17    2  to the right of    6
18    3           behind    9
19    3   to the left of    8
20    4  to the right of   10
21    4          next to    1
22    4  to the right of   11
23    5             near    1
24    6               on   10
25    6   to the left of    9
26    6   to the left of    2
27    6   to the left of    0
28    6   to the left of    8
29    8  to the right of    0
30    8  to the right of    9
31    8   on the side of    0
32    8  to the right of    6
33    8  to the right of    3
34    8          next to    1
35    9            above    0
36    9      in front of    3
37    9   to the left of    8
38    9  to the right of    6
39   10   to the left of    4
40   10   to the left of    2
41   10   to the left of    1
42   10   to the left of    0
43   11               on   10
44   11   to the left of    4
45   11   to the left of    1