What is underneath the yellow apple?
The orange is underneath the apple.
   src        edge_attr  dst
0    0       underneath    2
1    0  to the right of    1
2    1   to the left of    2
3    1   to the left of    0
4    2  to the right of    3
5    2  to the right of    1
6    2            above    0
7    2             near    3
8    3             near    2
9    3   to the left of    2