Are there either any fences or skis?
No, there are no fences or skis.
    src        edge_attr  dst
0     0             near    1
1     0        on top of    3
2     0   to the left of    7
3     0   to the left of    1
4     0               on    3
5     0   to the left of    5
6     0          next to    1
7     0   to the left of    4
8     1  to the right of    0
9     1   to the left of   10
10    1   to the left of    9
11    1  to the right of    4
12    1             near    0
13    1   to the left of    2
14    1               on    0
15    1             near    2
16    1  to the right of    7
17    2  to the right of    1
18    2  to the right of   10
19    2  to the right of    5
20    2          next to    1
21    4  to the right of    0
22    4   to the left of   10
23    4   to the left of    1
24    4   to the left of    6
25    4   to the left of    5
26    5  to the right of    0
27    5   to the left of    2
28    5  to the right of    7
29    5  to the right of    4
30    5   to the left of   10
31    5   to the left of    9
32    6  to the right of    4
33    6   to the left of    9
34    6   to the left of   10
35    7   to the left of    5
36    7               of    4
37    7   to the left of    1
38    7  to the right of    0
39    9  to the right of   10
40    9  to the right of    1
41    9  to the right of    5
42    9  to the right of    6
43   10   to the left of    2
44   10   to the left of    9
45   10  to the right of    1
46   10  to the right of    4
47   10  to the right of    6
48   10  to the right of    5