What color is that nose, yellow or red?
The nose is yellow.
     src       edge_attr  dst
0      3  to the left of   19
1      3  to the left of   12
2      3  to the left of    9
3      3  to the left of    4
4      3  to the left of    6
..   ...             ...  ...
106   21  to the left of    5
107   21  to the left of   13
108   21  to the left of    9
109   21  to the left of   17
110   21  to the left of   19

[111 rows x 3 columns]