Do you see a coat that is yellow?
No, there is a coat but it is black.
    src        edge_attr  dst
0     1  to the right of   28
1     2   to the left of   15
2     2   to the left of    8
3     2   to the left of   13
4     3   to the left of   20
..  ...              ...  ...
81   28   to the left of   15
82   28   to the left of    1
83   28   to the left of    9
84   28   to the left of    8
85   28   to the left of   13

[86 rows x 3 columns]