Is the red truck in front of the tree?
Yes, the truck is in front of the tree.
    src        edge_attr  dst
0     0               of   10
1     0   to the left of    8
2     2   to the left of    9
3     4  to the right of    8
4     4  to the right of    6
5     5   to the left of    8
6     6   to the left of    4
7     6  to the right of    9
8     7           behind   10
9     8   to the left of    4
10    8  to the right of    0
11    8  to the right of    5
12    9   to the left of    6
13    9  to the right of    2
14   10      in front of    7