Is the sticker black or green?
The sticker is green.
    src        edge_attr  dst
0     0  to the right of    7
1     1   to the left of    3
2     2  to the right of    8
3     2  to the right of    9
4     3  to the right of    1
5     3  to the right of    8
6     3  to the right of    7
7     3   to the left of    5
8     3  to the right of    4
9     3  to the right of    9
10    4   to the left of    3
11    4   to the left of   10
12    5  to the right of    3
13    7   to the left of    3
14    7   to the left of    0
15    8   to the left of    3
16    8   to the left of    2
17    9   to the left of    3
18    9   to the left of    2
19   10  to the right of    4