The person to the left of the containers is wearing what?
The worker is wearing a shirt.
   src        edge_attr  dst
0    0   to the left of    7
1    0   to the left of    9
2    4          wearing    7
3    4   to the left of    9
4    7  to the right of    0
5    7   to the left of    9
6    9  to the right of    7
7    9  to the right of    0
8    9  to the right of    4