Where are the trees?
The trees are on the beach.
    src        edge_attr  dst
0     0               in    4
1     0            above   16
2     0            above    3
3     0            above   10
4     0            above   12
5     1   to the left of   15
6     2   to the left of    8
7     2  to the right of   15
8     3   to the left of    6
9     3   to the left of   10
10    3   to the left of   11
11    3               on   11
12    5  to the right of    9
13    6  to the right of    3
14    6  to the right of   11
15    7               in   13
16    8               of    0
17    8  to the right of   15
18    8  to the right of    2
19    8  to the right of   14
20    9               on    6
21    9   to the left of    5
22   10  to the right of    3
23   10  to the right of   11
24   10            below    0
25   11   to the left of    6
26   11   to the left of   10
27   11  to the right of    3
28   12               on    6
29   14   to the left of    8
30   14  to the right of   15
31   15  to the right of   17
32   15   to the left of   14
33   15   to the left of    2
34   15  to the right of    1
35   15   to the left of    8
36   17   to the left of   15
37   17               of    0