Do the bags that are to the left of the other bags have black color?
No, the bags are blue.
     src        edge_attr  dst
0      0   to the left of   18
1      1  to the right of    4
2      1  to the right of    9
3      1  to the right of    8
4      2  to the right of   34
..   ...              ...  ...
227   36  to the right of   33
228   36  to the right of   20
229   36  to the right of   24
230   36  to the right of   25
231   36  to the right of   35

[232 rows x 3 columns]