What color do you think is the bag?
The bag is black.
   src        edge_attr  dst
0    3   to the left of    7
1    3             near    7
2    4  to the right of    7
3    5   to the left of    7
4    7  to the right of    3
5    7   to the left of    4
6    7  to the right of    5
7    7          next to    3