Where is the fence?
The fence is on the airport.
    src        edge_attr  dst
0     1               on   19
1     1               in   19
2     2  to the right of    8
3     7  to the right of   22
4     8   to the left of   21
5     8  to the right of    9
6     8   to the left of    2
7     9   to the left of    8
8    11   to the left of   20
9    11  to the right of   18
10   12      in front of   13
11   13   to the left of   21
12   15   to the left of   17
13   15   to the left of   16
14   16  to the right of   15
15   16   to the left of   17
16   17  to the right of   16
17   17  to the right of   15
18   18               of    0
19   18   to the left of   11
20   20  to the right of   11
21   21  to the right of   13
22   21  to the right of    8
23   22   to the left of    7