What does the man sit on?
The man sits on the bench.
    src        edge_attr  dst
0     2   to the left of   21
1     2   to the left of   12
2     2   to the left of    8
3     2  to the right of   17
4     3   to the left of    9
5     3  to the right of    6
6     3   to the left of   13
7     3   to the left of   14
8     3  to the right of   19
9     5  to the right of   15
10    6  to the right of    8
11    6   to the left of    3
12    6  to the right of   21
13    6  to the right of   12
14    7               on    1
15    8   to the left of   21
16    8   to the left of   15
17    8   to the left of    6
18    8  to the right of    2
19    8  to the right of   17
20    8   to the left of   19
21    9  to the right of    3
22    9  to the right of   19
23   11             with   20
24   11               on   10
25   11          wearing   16
26   11       sitting on   10
27   11          holding   20
28   12  to the right of    2
29   12   to the left of    6
30   12   to the left of   15
31   12  to the right of   17
32   12   to the left of   19
33   12   to the left of   21
34   13               on   14
35   13  to the right of    3
36   14  to the right of   19
37   14  to the right of    3
38   15  to the right of   21
39   15  to the right of   12
40   15   to the left of    5
41   15  to the right of    8
42   17   to the left of   12
43   17   to the left of    2
44   17   to the left of    8
45   19   to the left of   14
46   19   to the left of    9
47   19  to the right of    8
48   19   to the left of    3
49   19  to the right of   12
50   19  to the right of   21
51   21   to the left of   15
52   21   to the left of   19
53   21  to the right of    8
54   21  to the right of   12
55   21  to the right of    2
56   21   to the left of    6