The pillow is on what?
The pillow is on the sofa.
    src        edge_attr  dst
0     1               on    0
1     1  to the right of    5
2     1  to the right of    4
3     1  to the right of   10
4     2               on    3
5     2   to the left of   10
6     2   to the left of    7
7     4   to the left of    1
8     4  to the right of    8
9     4   to the left of    5
10    5               on    4
11    5  to the right of    4
12    5   to the left of    1
13    6               on   10
14    7   to the left of   10
15    7  to the right of    2
16    8  to the right of    9
17    8   to the left of    4
18    9               on   10
19    9   to the left of    8
20   10   to the left of    1
21   10  to the right of    7
22   10  to the right of    2