Is the container on the left?
Yes, the container is on the left of the image.
   src        edge_attr  dst
0    0   to the left of    2
1    2  to the right of    7
2    2  to the right of    0
3    2  to the right of    5
4    2  to the right of    6
5    3   to the left of    7
6    5   to the left of    2
7    6   to the left of    2
8    7   to the left of    2
9    7  to the right of    3