What is the computer monitor sitting on?
The computer monitor is sitting on the computer desk.
    src        edge_attr  dst
0     0       sitting on    8
1     0               on    8
2     0   to the left of    3
3     0  to the right of   11
4     1               on    8
5     3  to the right of    0
6     4   to the left of    7
7     4   to the left of    6
8     6  to the right of    4
9     7  to the right of    4
10   10               on    8
11   10  to the right of   11
12   11   to the left of   10
13   11       sitting on    8
14   11   to the left of    0
15   11               on    8