Which place is it?
It is a forest.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of   13
2     0   to the left of   12
3     0   to the left of    7
4     1   to the left of   12
5     1   to the left of    4
6     1  to the right of    9
7     2  to the right of   12
8     2               of    8
9     3  to the right of   11
10    3  to the right of    5
11    4  to the right of    1
12    4  to the right of   11
13    4  to the right of    9
14    5   to the left of   14
15    5   to the left of    3
16    6  to the right of   11
17    7  to the right of    9
18    7  to the right of   11
19    7  to the right of    0
20    8  to the right of   11
21    8  to the right of    9
22    8  to the right of    0
23    9   to the left of    4
24    9   to the left of    8
25    9   to the left of   13
26    9   to the left of   12
27    9   to the left of    7
28    9   to the left of    1
29    9               of   11
30   11   to the left of   12
31   11   to the left of    8
32   11   to the left of    4
33   11   to the left of   14
34   11   to the left of    3
35   11   to the left of    6
36   11   to the left of   13
37   11   to the left of    7
38   11   to the left of   15
39   12  to the right of    0
40   12  to the right of    9
41   12  to the right of   11
42   12  to the right of    1
43   12   to the left of    2
44   13  to the right of    0
45   13  to the right of    9
46   13  to the right of   11
47   14  to the right of   11
48   14  to the right of    5
49   15  to the right of   11
50   15               of   13