Which color is the vest that the lady wears?
The vest is black.
     src       edge_attr  dst
0      0  to the left of   22
1      0  to the left of    2
2      0  to the left of   11
3      0  to the left of   15
4      0  to the left of   17
..   ...             ...  ...
168   25  to the left of   16
169   25  to the left of   15
170   25  to the left of   19
171   25  to the left of   17
172   25  to the left of   22

[173 rows x 3 columns]