Are there both buns and hot dogs in the picture?
Yes, there are both a hot dog and a bun.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of   22
2     1   to the left of   10
3     1   to the left of   14
4     2  to the right of   25
..  ...              ...  ...
79   32   to the left of   22
80   32   to the left of   16
81   32   to the left of    8
82   32   to the left of   12
83   32   to the left of   13

[84 rows x 3 columns]