Is the color of the lettuce different than the salad?
Yes, the lettuce is red and the salad is green.
    src        edge_attr  dst
0     0  to the right of    5
1     0   to the left of    9
2     0   to the left of    7
3     2   to the left of    4
4     3  to the right of    7
5     3  to the right of    6
6     3  to the right of    9
7     4  to the right of    2
8     5   to the left of    0
9     6   to the left of    3
10    7  to the right of    0
11    7   to the left of    3
12    9  to the right of    0
13    9   to the left of    3