Are there books by the purple couch?
Yes, there is a book by the couch.
    src        edge_attr  dst
0     0               by    8
1     1               on    3
2     2               on    8
3     2   to the left of    7
4     4               on    8
5     5               on    8
6     6               on    8
7     7               on    8
8     7  to the right of    2
9     8  to the right of    9
10    9   to the left of    8