What color is the shoe on the other shoe?
The shoe is red.
    src        edge_attr  dst
0     0   to the left of   18
1     0               on    0
2     1               on   20
3     1  to the right of   12
4     1  to the right of    8
..  ...              ...  ...
73   21  to the right of    2
74   23   to the left of   19
75   23   to the left of   17
76   23  to the right of    2
77   23   to the left of    8

[78 rows x 3 columns]