Is the onion in the bottom part of the image?
Yes, the onion is in the bottom of the image.
    src        edge_attr  dst
0     0   to the left of    7
1     1  to the right of    7
2     1  to the right of    6
3     1  to the right of    2
4     1  to the right of    4
5     1  to the right of    3
6     2   to the left of    1
7     3   to the left of    1
8     4   to the left of    1
9     4            above    5
10    5            under    4
11    6   to the left of    1
12    7   to the left of    1
13    7  to the right of    0
14    7  to the right of    8
15    8   to the left of    7