Are there umpires to the left of the batter in the middle?
No, the umpire is to the right of the batter.
    src        edge_attr  dst
0     0   to the left of   17
1     0  to the right of    4
2     0  to the right of    7
3     0   to the left of   16
4     0  to the right of    2
..  ...              ...  ...
86   17  to the right of    7
87   17  to the right of   11
88   17  to the right of    0
89   17  to the right of    5
90   18   to the left of    7

[91 rows x 3 columns]