Are there any men to the left of the drinks that are on the right side?
Yes, there is a man to the left of the drinks.
    src        edge_attr  dst
0     1  to the right of   21
1     2  to the right of    7
2     2  to the right of   11
3     3   to the left of    8
4     3  to the right of    6
..  ...              ...  ...
66   21  to the right of   13
67   21   to the left of   17
68   21   to the left of   15
69   21   to the left of    1
70   21  to the right of    3

[71 rows x 3 columns]