Is there any snowboard or fence in the scene?
Yes, there is a snowboard.
    src        edge_attr  dst
0     0       covered in    2
1     1  to the right of    2
2     2   to the left of    1
3     5               on    7
4     9          wearing   15
5     9          wearing   10
6    10  to the right of   15
7    11   to the left of   13
8    11   on the side of   12
9    11   to the left of   14
10   13   on the side of   12
11   13  to the right of   14
12   13  to the right of   11
13   14   to the left of   13
14   14   on the side of   12
15   14  to the right of   11
16   15   to the left of   10