What is in front of the pole?
The trees are in front of the pole.
    src        edge_attr  dst
0     2               of   10
1     3             near    4
2     3  to the right of    8
3     3  to the right of    6
4     3           behind    6
5     3            below   10
6     3   to the left of    7
7     4           behind    6
8     4             near    3
9     5               in    0
10    6   to the left of    3
11    6  to the right of    8
12    6      in front of    4
13    6      in front of    3
14    6      in front of    7
15    7           behind    6
16    7  to the right of    3
17    8   to the left of    3
18    8   to the left of    6
19    9           behind   10
20    9   to the left of   10
21   10  to the right of    9
22   10      in front of    9
23   10            above    3