Who is standing?
The people are standing.
     src        edge_attr  dst
0      0   to the left of   19
1      0   to the left of   16
2      0   to the left of   22
3      0   to the left of   20
4      0   to the left of   13
..   ...              ...  ...
189   30   to the left of    1
190   30   to the left of   10
191   30   to the left of    6
192   31  to the right of    9
193   31  to the right of   18

[194 rows x 3 columns]