Of which color is the hair?
The hair is dark.
    src        edge_attr  dst
0     0   to the left of    7
1     1  to the right of    8
2     1  to the right of   18
3     1  to the right of    4
4     1  to the right of    3
..  ...              ...  ...
73   17  to the right of    3
74   17   to the left of   15
75   18   to the left of   15
76   18   to the left of   12
77   18   to the left of    1

[78 rows x 3 columns]