What's the dog lying on?
The dog is lying on the bed.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    1
2     1  to the right of    7
3     1               of    6
4     1   to the left of    0
5     1  to the right of    4
6     1   to the left of    5
7     4   to the left of    1
8     4   to the left of    0
9     4   to the left of    5
10    5  to the right of    7
11    5  to the right of    4
12    5  to the right of    1
13    6               on    3
14    6         lying on    3
15    7   to the left of    5
16    7   to the left of    1
17    7      in front of    9
18    8               on    6