What is on the metal pole?
The lamp is on the pole.
    src        edge_attr  dst
0     0  to the right of   10
1     0   to the left of    9
2     3               on   10
3     3   to the left of   13
4     3   to the left of    9
5     8   to the left of   11
6     8             near   11
7     9  to the right of    0
8     9  to the right of   10
9     9  to the right of    3
10    9  to the right of   13
11   10   to the left of   13
12   10   to the left of    9
13   10   to the left of    0
14   11             near    8
15   11  to the right of    8
16   13               on    0
17   13   to the left of    9
18   13  to the right of    3
19   13  to the right of   10