What is common to the coat and the arrow?
The color, both the coat and the arrow are black.
     src        edge_attr  dst
0      0   to the left of   20
1      0   to the left of    9
2      0  to the right of    4
3      0   to the left of   18
4      0  to the right of   10
..   ...              ...  ...
107   23  to the right of   18
108   23   to the left of    3
109   24   to the left of    3
110   24   to the left of   14
111   24   to the left of    5

[112 rows x 3 columns]