What is the color of that trash bin?
The trash bin is gray.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of   10
2     2  to the right of   14
3     6  to the right of    7
4     6               in    9
5     7   to the left of    6
6     8  to the right of   14
7    10  to the right of   11
8    10  to the right of    0
9    11   to the left of   10
10   11   to the left of    0
11   14   to the left of    8
12   14   to the left of    2