What's in front of the door?
The car is in front of the door.
    src        edge_attr  dst
0     0   to the left of    7
1     1  to the right of    6
2     1   to the left of    2
3     2  to the right of    1
4     2  to the right of    3
5     2  to the right of    8
6     3   to the left of    2
7     4   to the left of    7
8     4   to the left of    8
9     5           behind    6
10    6      in front of    5
11    6   to the left of    8
12    6   to the left of    1
13    7  to the right of    4
14    7  to the right of    0
15    8   to the left of    2
16    8  to the right of    4
17    8  to the right of    6