What is on the covered tree?
The snow is on the tree.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    2
2     0   to the left of    5
3     0          exiting    8
4     0          wearing    9
5     2          next to    8
6     2             near    8
7     2   to the left of    0
8     2   to the left of    7
9     2   to the left of    9
10    2   to the left of    5
11    2   to the left of    6
12    2   to the left of   14
13    3   to the left of    6
14    3   to the left of    0
15    3   to the left of    7
16    3   to the left of    9
17    3   to the left of    5
18    5  to the right of    0
19    5  to the right of    9
20    5  to the right of    3
21    5  to the right of    2
22    5  to the right of    7
23    5  to the right of    6
24    6   to the left of    5
25    6  to the right of    2
26    6  to the right of    3
27    6  to the right of   10
28    7  to the right of    3
29    7  to the right of    2
30    7   to the left of    5
31    8           behind   13
32    8               on   13
33    8             near    2
34    9  to the right of    2
35    9  to the right of    3
36    9   to the left of    5
37   10   to the left of   14
38   10   to the left of    6
39   11         covering   15
40   11               on   15
41   14  to the right of    2
42   14  to the right of   10
43   15       covered by   11