Is the bench made of metal black or green?
The bench is green.
    src        edge_attr  dst
0     2   to the left of    5
1     4   to the left of   14
2     4   to the left of   15
3     5       underneath   14
4     5  to the right of    2
5     5       growing by    4
6     5            below   14
7     6   to the left of    9
8     9  to the right of    6
9    11  to the right of   12
10   12          wearing   16
11   12          wearing    8
12   12          wearing    9
13   12   to the left of   11
14   14  to the right of    4
15   14            above    5
16   15  to the right of    4