What do you think are the letters on?
The letters are on the bench.
    src        edge_attr  dst
0     0  to the right of    7
1     0  to the right of    3
2     1   to the left of   13
3     1   to the left of    8
4     1  to the right of    6
5     2   to the left of   10
6     3               in    7
7     3   to the left of    8
8     3   to the left of    0
9     4               on    8
10    6   to the left of    8
11    6   to the left of    1
12    6   to the left of   13
13    7   to the left of    8
14    7   to the left of    0
15    8  to the right of    3
16    8  to the right of    6
17    8  to the right of    7
18    8  to the right of   13
19    8               in    9
20    8  to the right of    1
21   10  to the right of    2
22   10  to the right of   12
23   12   to the left of   10
24   13   to the left of    8
25   13  to the right of    6
26   13  to the right of    1
27   14               on    8