The person that is not old is sitting on what?
The girl is sitting on the bench.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of   13
2     4       sitting on    0
3     4      in front of    5
4     4   to the left of    5
5     4          wearing   13
6     4   to the left of   17
7     4          wearing    3
8     5           behind    4
9     5  to the right of   10
10    5  to the right of    9
11    5  to the right of    4
12    5  to the right of   17
13    5  to the right of   15
14    6   to the left of   16
15    6   to the left of   12
16    6   to the left of   10
17    6   to the left of    9
18    6   to the left of    7
19    7   to the left of   15
20    7  to the right of    6
21    7   to the left of   16
22    8   to the left of   10
23    9   to the left of    5
24    9  to the right of    6
25   10  to the right of    8
26   10   to the left of    5
27   10  to the right of    6
28   11  to the right of    0
29   12   to the left of   17
30   12  to the right of    6
31   13  to the right of    0
32   15  to the right of    7
33   15   to the left of   17
34   15   to the left of    5
35   15  to the right of   16
36   16  to the right of    6
37   16   to the left of   15
38   16  to the right of    7
39   17  to the right of   15
40   17  to the right of   12
41   17   to the left of    5
42   17  to the right of    4