What do both the banana and the tray have in common?
The color, both the banana and the tray are green.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    5
2     1  to the right of    4
3     2  to the right of    0
4     2  to the right of    3
5     2  to the right of    6
6     3   to the left of    2
7     3   to the left of    5
8     4   to the left of    1
9     4   to the left of    5
10    5  to the right of    4
11    5  to the right of    6
12    5  to the right of    3
13    5  to the right of    0
14    6   to the left of    5
15    6   to the left of    2