Are there any silver cans or bottles?
No, there is a bottle but it is green.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of    9
2     0   to the left of    7
3     5   to the left of    8
4     5   to the left of    9
5     5   to the left of    7
6     6  to the right of    7
7     6  to the right of    0
8     7   to the left of    9
9     7   to the left of    6
10    7  to the right of    5
11    7  to the right of    0
12    8   to the left of    9
13    8  to the right of    5
14    9  to the right of    0
15    9  to the right of    8
16    9  to the right of    5
17    9  to the right of    7