What is the color of the cap?
The cap is white.
     src        edge_attr  dst
0      1          holding   28
1      1   to the left of   28
2      1  to the right of   26
3      1   to the left of   27
4      1  to the right of   18
..   ...              ...  ...
122   26  to the right of   19
123   27  to the right of    1
124   27  to the right of   28
125   28  to the right of    1
126   28   to the left of   27

[127 rows x 3 columns]