What is on the platform the sign is above?
The benches are on the platform.
    src        edge_attr  dst
0     0           behind    9
1     0   to the left of    5
2     1   to the left of   19
3     1   to the left of   17
4     1  to the right of   10
5     2  to the right of    9
6     2               on    3
7     3  to the right of    9
8     3  to the right of   15
9     4   to the left of    5
10    4  to the right of   16
11    5  to the right of    4
12    5            above    3
13    5  to the right of    0
14    6   to the left of   12
15    6  to the right of   11
16    7   to the left of   14
17    7  to the right of    9
18    7   to the left of   17
19    8         watching    9
20    8       sitting on    7
21    8  to the right of    9
22    8   to the left of   17
23    9   to the left of    8
24    9   to the left of   14
25    9   to the left of    2
26    9   to the left of    7
27    9   to the left of    3
28    9      in front of    0
29    9      in front of   16
30   10   to the left of    1
31   11   to the left of   12
32   11   to the left of    6
33   12  to the right of   11
34   12  to the right of    6
35   12   to the left of   15
36   13   to the left of   20
37   13           beside   20
38   14  to the right of    7
39   14  to the right of    9
40   15  to the right of   12
41   15   to the left of    3
42   16           behind    9
43   16   to the left of   18
44   16   to the left of    4
45   17  to the right of   19
46   17  to the right of    7
47   17  to the right of    8
48   17  to the right of    1
49   18  to the right of   16
50   19   to the left of   17
51   19  to the right of    1
52   20  to the right of   13