Of what color are the shoes?
The shoes are black.
    src        edge_attr  dst
0     0  to the right of   15
1     0  to the right of    6
2     0  to the right of   12
3     0  to the right of   11
4     1   to the left of    3
..  ...              ...  ...
67   15   to the left of    9
68   15   to the left of   10
69   15   to the left of    0
70   15   to the left of    3
71   15  to the right of    1

[72 rows x 3 columns]