The bus is in front of what?
The bus is in front of the pole.
    src        edge_attr  dst
0     0               on    6
1     2  to the right of    3
2     2  to the right of   10
3     2  to the right of   14
4     3  to the right of   14
5     3   to the left of    2
6     5  to the right of    9
7     5      in front of    8
8     8           behind    5
9     9   to the left of    5
10    9   to the left of   14
11   10  to the right of   14
12   10   to the left of    2
13   11   to the left of   12
14   12   to the left of   13
15   12  to the right of   11
16   13  to the right of   12
17   14   to the left of    2
18   14  to the right of    9
19   14   to the left of   10
20   14   to the left of    3