What's on the pole?
The lamp is on the pole.
    src        edge_attr  dst
0     0  to the right of    9
1     0   to the left of    8
2     0   to the left of    7
3     1   to the left of    8
4     3               on    3
5     6               on    4
6     7  to the right of    0
7     7  to the right of    9
8     8  to the right of    0
9     8  to the right of    1
10    8  to the right of    9
11    9   to the left of    8
12    9   to the left of    0
13    9   to the left of    7