Is the tree in front of the car?
No, the tree is behind the car.
    src        edge_attr  dst
0     0  to the right of    2
1     2   to the left of    0
2     4   to the left of   16
3     4   to the left of   14
4     4   to the left of   15
5     5  to the right of    7
6     5   to the left of    9
7     7   to the left of    5
8     9           behind   16
9     9  to the right of    5
10   10   to the left of   16
11   10   to the left of   13
12   11  to the right of   16
13   13   to the left of   16
14   13  to the right of   10
15   14  to the right of    4
16   15  to the right of    4
17   16      in front of    9
18   16  to the right of   13
19   16   to the left of   11
20   16  to the right of   10
21   16  to the right of    4