Are there red skis or fences?
Yes, there is a red fence.
    src        edge_attr  dst
0     0  to the right of   15
1     0  to the right of    3
2     0  to the right of   19
3     0  to the right of   18
4     1  to the right of    2
5     2   to the left of    1
6     3  to the right of   15
7     3   to the left of   17
8     3   to the left of   18
9     3   to the left of   20
10    3   to the left of    0
11    3   to the left of   12
12    3   to the left of    4
13    4  to the right of    3
14    4  to the right of   18
15    4  to the right of   19
16    5   to the left of    8
17    5  to the right of   10
18    8  to the right of   13
19    8           behind   13
20    8  to the right of    5
21   10   to the left of    5
22   11   to the left of   14
23   11               in    9
24   12  to the right of    3
25   12  to the right of   18
26   12  to the right of   19
27   13   to the left of    8
28   13      in front of    8
29   14  to the right of   11
30   14               on    2
31   15   to the left of    0
32   15   to the left of   20
33   15   to the left of    3
34   17  to the right of    3
35   17  to the right of   18
36   17             with   12
37   17  to the right of   19
38   18  to the right of   19
39   18   to the left of    0
40   18   to the left of   17
41   18  to the right of    3
42   18   to the left of    4
43   18   to the left of   12
44   19               on   20
45   19   to the left of   18
46   19   to the left of    4
47   19   to the left of   17
48   19   to the left of    0
49   19   to the left of   12
50   20  to the right of   15
51   20  to the right of    3