What is in front of the wall?
The pillow is in front of the wall.
    src        edge_attr  dst
0     0  to the right of    2
1     1  to the right of    7
2     2   to the left of   10
3     2   to the left of    0
4     2   to the left of    4
5     2   to the left of   11
6     3  to the right of    7
7     4  to the right of    2
8     4  to the right of    8
9     4  to the right of   12
10    5   to the left of   12
11    5   to the left of    9
12    6           behind    7
13    7      in front of    6
14    7   to the left of    3
15    7   to the left of    1
16    8   to the left of    4
17    9               on   13
18    9  to the right of    5
19   10  to the right of    2
20   11  to the right of   12
21   11               on    4
22   11  to the right of    2
23   12   to the left of   11
24   12  to the right of    5
25   12   to the left of    4