Are there umpires on the green field?
No, there is a fence on the field.
     src        edge_attr  dst
0      0               on   31
1      0  to the right of   24
2      0  to the right of   23
3      0  to the right of   29
4      0  to the right of   34
..   ...              ...  ...
125   36   to the left of    2
126   36   to the left of   20
127   36   to the left of    6
128   36   to the left of   32
129   36   to the left of   23

[130 rows x 3 columns]