Is this a truck or a train?
This is a train.
    src        edge_attr  dst
0     1             near   18
1     1          next to   18
2     1  to the right of    3
3     1   to the left of    8
4     1  to the right of    9
5     1   to the left of   15
6     1  to the right of    5
7     3   to the left of    1
8     4   to the left of    7
9     5  to the right of   10
10    5   to the left of    1
11    5  to the right of   14
12    6  to the right of   18
13    7  to the right of    4
14    7             near   16
15    8  to the right of    1
16    8  to the right of    9
17    9   to the left of    8
18    9   to the left of    1
19   10   to the left of   11
20   10           behind   17
21   10  to the right of   18
22   10   to the left of   17
23   10   to the left of    5
24   11  to the right of   10
25   14   to the left of    5
26   14   to the left of   17
27   15  to the right of    1
28   16          next to    7
29   17  to the right of   14
30   17      in front of   10
31   17  to the right of   10
32   18             near    1
33   18   to the left of    6
34   18   to the left of   10