What animal is on the beach?
The dog is on the beach.
    src        edge_attr  dst
0     1  to the right of    2
1     2   to the left of    1
2     3  to the right of   10
3     6       playing in    5
4     6       walking in    5
5     6      swimming in    5
6     6               on    0
7     7   to the left of   11
8     7   to the left of    8
9     8  to the right of    7
10   10   to the left of    3
11   11  to the right of    7