Is the ground below a tennis ball?
Yes, the ground is below a tennis ball.
    src        edge_attr  dst
0     0   to the left of   20
1     0   to the left of   12
2     0   to the left of   13
3     0   to the left of    8
4     1   to the left of   21
..  ...              ...  ...
72   22          wearing    3
73   22          wearing   21
74   22   to the left of   13
75   23  to the right of    4
76   23  to the right of    8

[77 rows x 3 columns]