Which is less healthy, the hot dog or the pepper?
The hot dog is less healthy than the pepper.
    src        edge_attr  dst
0     6  to the right of   14
1     6  to the right of    8
2     6  to the right of    7
3     7   to the left of    6
4     7   to the left of    8
5     7  to the right of   15
6     8  to the right of    7
7     8  to the right of   15
8     8   to the left of    6
9    14   to the left of    6
10   14  to the right of   15
11   15   to the left of   14
12   15   to the left of    7
13   15   to the left of    8