What animal is in the suitcase?
The cat is in the suitcase.
    src        edge_attr  dst
0     1               in    0
1     1         lying in    0
2     1           inside    0
3     3  to the right of    6
4     4  to the right of    5
5     5   to the left of    4
6     6  to the right of    9
7     6   to the left of    3
8     9   to the left of    6
9    10  to the right of   11
10   11   to the left of   10