Is the tree behind a boy?
No, the tree is behind an elephant.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of    6
2     1   to the left of    0
3     2           behind   15
4     2           behind   12
5     2   to the left of    4
6     2   to the left of    9
7     2   to the left of   10
8     3  to the right of   12
9     4   to the left of   13
10    4               on   12
11    4  to the right of    2
12    6   to the left of    0
13    6          next to   12
14    6             near   12
15    9  to the right of    2
16    9   to the left of   13
17   10  to the right of    2
18   10   to the left of   13
19   11               on   12
20   11   to the left of   13
21   12   to the left of   13
22   12   to the left of    3
23   12             near    6
24   12      in front of    2
25   12             near   14
26   12      in front of   15
27   12           eating    9
28   13  to the right of   12
29   13  to the right of    9
30   13  to the right of    4
31   13  to the right of   11
32   13             near   14
33   13  to the right of   10
34   14             near   13
35   14             near   12
36   15           behind   12
37   15      in front of    2