Which kind of furniture is the book on?
The book is on the shelf.
   src        edge_attr  dst
0    0       sitting on    1
1    0  to the right of    3
2    0   to the left of    2
3    2       sitting on    1
4    2  to the right of    3
5    2  to the right of    0
6    3       sitting on    1
7    3   to the left of    0
8    3   to the left of    2
9    5               on    4