What is the device that the animal in front of the wall is resting on?
The device is a computer.
   src        edge_attr  dst
0    0   to the left of    2
1    1   to the left of    3
2    1           behind    3
3    2               on    0
4    2  to the right of    0
5    3        on top of    2
6    3               on    2
7    3      in front of    1
8    3  to the right of    1
9    3       resting on    2