Are there any numbers or words that are not large?
No, there are numbers but they are large.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of   10
2     2   to the left of    9
3     4               on    1
4     4   to the left of    9
5     5               in    9
6     5  to the right of    7
7     6   to the left of    7
8     6   to the left of   10
9     7   to the left of    5
10    7  to the right of    8
11    7  to the right of    6
12    8   to the left of    7
13    8  to the right of    0
14    8   to the left of   10
15    8               on    4
16    9  to the right of    2
17    9  to the right of    4
18   10  to the right of    8
19   10  to the right of    6
20   10  to the right of    0