Which color is that shelf?
The shelf is yellow.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    3
2     0   to the left of    1
3     0   to the left of    4
4     1  to the right of    0
5     2  to the right of    3
6     2  to the right of    0
7     3   to the left of    2
8     3  to the right of    0
9     4  to the right of    0
10    4          wearing    3