Does the fence seem to be red and short?
Yes, the fence is red and short.
    src        edge_attr  dst
0     0         crossing   15
1     0   to the left of   17
2     0  to the right of    5
3     0  to the right of    8
4     0   to the left of   11
5     0  to the right of   10
6     0  to the right of   16
7     0   to the left of   12
8     1               in    7
9     2  to the right of    8
10    5   to the left of    0
11    6  to the right of   13
12    8   to the left of    0
13    8   to the left of    2
14    9   to the left of   11
15   10   to the left of    0
16   11   to the left of   12
17   11  to the right of    0
18   11  to the right of    9
19   12  to the right of    0
20   12  to the right of   17
21   12  to the right of   11
22   13   to the left of    6
23   16   to the left of    0
24   17  to the right of    0
25   17   to the left of   12