Is the green tree behind or in front of the truck near the man?
The tree is behind the truck.
    src        edge_attr  dst
0     0          wearing    1
1     0             near    4
2     0             near    5
3     0          wearing    2
4     0           beside    4
5     0   to the left of    4
6     1   to the left of    6
7     3   to the left of    4
8     4  to the right of    3
9     4  to the right of    0
10    4             near    0
11    5      in front of    6
12    5             near    0
13    6  to the right of    1
14    6           behind    5