Does the cane look black?
No, the cane is silver.
    src        edge_attr  dst
0     0   to the left of    5
1     0   to the left of    3
2     1   to the left of    9
3     1   to the left of    3
4     3  to the right of    1
5     3  to the right of    0
6     5   to the left of   11
7     5  to the right of    0
8     7  to the right of   12
9     9  to the right of    1
10   11  to the right of    5
11   12   to the left of    7