Is the cat to the right or to the left of the pillow on the right?
The cat is to the left of the pillow.
   src        edge_attr  dst
0    0  to the right of    3
1    0  to the right of    1
2    0  to the right of    2
3    1   to the left of    0
4    2   to the left of    0
5    3   to the left of    0