What is on the comforter?
The books are on the comforter.
    src        edge_attr  dst
0     0  to the right of    4
1     1       sitting on    2
2     3               on    8
3     4               on    6
4     4   to the left of    0
5     9  to the right of   10
6     9               on   12
7     9  to the right of   11
8    10               on   11
9    10   to the left of    9
10   11   to the left of    9