Is the cake topped with syrup?
Yes, the cake is topped with syrup.
   src          edge_attr  dst
0    0          on top of    5
1    5        topped with    6
2    5  sitting on top of    2
3    5        topped with    1
4    5         covered in    6
5    5         sitting on    2
6    6                 on    5
7    8                 on    5