Are there fences in the image?
No, there are no fences.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of    1
2     1   to the left of   16
3     1   to the left of    3
4     1   to the left of    0
5     2   to the left of    5
6     2   to the left of    7
7     3  to the right of    1
8     4   to the left of   17
9     4   to the left of    7
10    4  to the right of   12
11    5  to the right of   17
12    5  to the right of    2
13    6  to the right of    9
14    7  to the right of    8
15    7  to the right of    4
16    7  to the right of    2
17    7  to the right of    0
18    8   to the left of    7
19    9   to the left of    6
20    9   to the left of   10
21    9   to the left of   13
22    9   to the left of   15
23   10  to the right of    9
24   10   to the left of   14
25   12   to the left of    4
26   12   to the left of   16
27   13  to the right of    9
28   14  to the right of   10
29   15  to the right of    9
30   16  to the right of    1
31   16  to the right of   12
32   17  to the right of    4
33   17   to the left of    5