Is the bench to the left of the person both green and empty?
No, the bench is empty but brown.
   src        edge_attr  dst
0    1  to the right of    3
1    2               on    3
2    2  to the right of    3
3    3   to the left of    2
4    3   to the left of    1
5    5   to the left of    6
6    6  to the right of    5
7    6               on    7
8    6               at    7