Are there any cones or fences in the image?
Yes, there is a fence.
    src        edge_attr  dst
0     0   to the left of    9
1     2   to the left of    6
2     2  to the right of    9
3     2  to the right of   10
4     3   to the left of    4
5     4  to the right of    3
6     5  to the right of    7
7     6  to the right of    2
8     6  to the right of    7
9     7  to the right of    9
10    7   to the left of   11
11    7   to the left of    5
12    7   to the left of    6
13    8           around   10
14    8           around    9
15    9  to the right of   10
16    9   to the left of    2
17    9  to the right of    0
18    9   to the left of    7
19   10   to the left of    9
20   10   to the left of    2
21   11  to the right of    7