What is covered in sugar?
The donuts are covered in sugar.
    src        edge_attr  dst
0     0               on    7
1     2               on    6
2     2   to the left of    7
3     5               on    7
4     5            above    7
5     5       covered in    1
6     6           behind    7
7     6               on    3
8     7            under    5
9     7      in front of    6
10    7  to the right of    2