What was used to make the bench?
The bench is made of cement.
    src        edge_attr  dst
0     0   to the left of    9
1     0   to the left of    7
2     0           behind    9
3     1   to the left of    8
4     1   to the left of    7
5     2   to the left of    7
6     2           around    1
7     2               on    9
8     3   to the left of    9
9     4   to the left of    9
10    7               on    6
11    7  to the right of    0
12    7  to the right of    2
13    7  to the right of    1
14    7  to the right of    9
15    7   to the left of   10
16    8               of    7
17    8  to the right of    1
18    8   to the left of   10
19    8  to the right of    9
20    9               on    6
21    9   to the left of    8
22    9      in front of    0
23    9  to the right of    0
24    9  to the right of    3
25    9  to the right of    4
26    9   to the left of    7
27   10  to the right of    8
28   10  to the right of    7