What is the cat sitting on?
The cat is sitting on the floor.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of    2
2     1               of   15
3     1   to the left of    4
4     2  to the right of   11
5     2  to the right of   12
6     2  to the right of    9
7     2  to the right of    0
8     4  to the right of    1
9     4  to the right of   15
10    6               on   18
11    6  to the right of   11
12    7   to the left of    9
13    7   to the left of   10
14    8   to the left of   10
15    9  to the right of   13
16    9  to the right of    7
17    9  to the right of   10
18    9   to the left of    2
19   10   to the left of   14
20   10  to the right of    7
21   10  to the right of    8
22   10   to the left of    9
23   11   to the left of    2
24   11   to the left of    6
25   11   to the left of    0
26   12   to the left of    2
27   12  to the right of   13
28   13   to the left of   14
29   13   to the left of    9
30   13   to the left of   12
31   14  to the right of   10
32   14  to the right of   13
33   15       sitting on    3
34   15         watching   11
35   15   to the left of    4
36   16  to the right of   17
37   17               of   15
38   17   to the left of   16