Is the tree behind him?
Yes, the tree is behind the man.
    src        edge_attr  dst
0     0           behind    9
1     1   to the left of    8
2     1  to the right of    7
3     1  to the right of   10
4     2   to the left of    9
5     2  to the right of    6
6     2   to the left of    5
7     5  to the right of    2
8     5  to the right of   10
9     6   to the left of    9
10    6   to the left of   10
11    6   to the left of    2
12    7   to the left of    1
13    7   to the left of    9
14    7   to the left of   10
15    8  to the right of    1
16    8  to the right of   10
17    9  to the right of    6
18    9  to the right of    2
19    9  to the right of   10
20    9      in front of    0
21    9  to the right of    7
22   10   to the left of    9
23   10  to the right of    6
24   10   to the left of    5
25   10   to the left of    1
26   10  to the right of    7
27   10   to the left of    8