What is on the pole?
The lamp is on the pole.
    src        edge_attr  dst
0     0   to the left of   16
1     2   to the left of   16
2     3   to the left of   10
3     3   to the left of    8
4     4   to the left of    9
5     5  to the right of   11
6     5  to the right of   13
7     5               on    7
8     6   to the left of   16
9     7  to the right of   15
10    8   to the left of   10
11    8  to the right of    3
12    9  to the right of    4
13    9               on    0
14   10  to the right of    3
15   10  to the right of    8
16   11   to the left of    5
17   11  to the right of   14
18   11   to the left of   13
19   13   to the left of    5
20   13  to the right of   11
21   13  to the right of   14
22   14   to the left of   11
23   14   to the left of   13
24   15   to the left of    7
25   16  to the right of    0
26   16  to the right of    2
27   16  to the right of    6