The poster is in front of what?
The poster is in front of the wall.
    src        edge_attr  dst
0     0   to the left of    1
1     1  to the right of    0
2     2            above    7
3     2          beneath    8
4     2      in front of   10
5     2            below    8
6     3          beneath    6
7     3            below    6
8     5  to the right of    6
9     6            above    3
10    6   to the left of    5
11    6          beneath    8
12    8            above    6
13    8            above    2
14    8      in front of   10
15   10           behind    8
16   10           behind    2