What is the box on?
The box is on the rocks.
    src        edge_attr  dst
0     0   on the side of    1
1     0   to the left of    1
2     1  to the right of    0
3     1  to the right of    3
4     2   to the left of    5
5     2  to the right of    7
6     2   to the left of    6
7     3   to the left of   10
8     3   on the side of    1
9     3               on    0
10    3   to the left of    4
11    3   to the left of    1
12    4  to the right of    3
13    5  to the right of    8
14    5  to the right of    2
15    6  to the right of    2
16    6  to the right of    8
17    7   to the left of    2
18    8   to the left of    5
19    8   to the left of    6
20   10  to the right of    3
21   11               on    5