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