What device is in front of the wall?
The device is a computer.
    src        edge_attr  dst
0     0           behind    2
1     1               on    8
2     1  to the right of    3
3     1  to the right of    2
4     1  to the right of   11
5     2            above   13
6     2      in front of    0
7     2               on    8
8     2  to the right of    4
9     2   to the left of    3
10    2   to the left of   11
11    2   to the left of    5
12    2   to the left of    1
13    3  to the right of    8
14    3               on    8
15    3   to the left of   11
16    3  to the right of    6
17    3  to the right of    2
18    3   to the left of    1
19    4               on    8
20    4   to the left of    2
21    5  to the right of    2
22    5               on    8
23    6   to the left of    3
24    7            below    8
25    7            under    8
26    7  to the right of    9
27    8            above    7
28    8   to the left of    3
29    9               on    8
30    9   to the left of   13
31    9               on   12
32    9   to the left of   10
33    9   to the left of    7
34   10  to the right of    9
35   10  to the right of   12
36   11               on    8
37   11   to the left of    1
38   11  to the right of    2
39   11  to the right of    3
40   12   to the left of   10
41   13  to the right of    9