Who is standing?
The men are standing.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of   19
2     2   to the left of   16
3     2   to the left of   15
4     2   to the left of   17
..  ...              ...  ...
67   18  to the right of   10
68   19   to the left of   11
69   19   to the left of    0
70   19   to the left of   17
71   19  to the right of    9

[72 rows x 3 columns]