Is the shopping cart in the bottom of the picture?
Yes, the shopping cart is in the bottom of the image.
   src        edge_attr  dst
0    0  to the right of    4
1    1   to the left of    4
2    1  to the right of    2
3    2   to the left of    1
4    4  to the right of    1
5    4   to the left of    0
6    4   to the left of    6
7    6  to the right of    4