Do you see any benches that are not made of metal?
Yes, there is a bench that is made of wood.
    src        edge_attr  dst
0     1  to the right of    2
1     1   to the left of   10
2     1   to the left of   11
3     1   to the left of    7
4     2   to the left of    1
5     2  to the right of   12
6     7  to the right of    1
7     8               on    4
8     8   to the left of    9
9     9  to the right of    8
10   10  to the right of    1
11   11  to the right of    1
12   12   to the left of    2