Who is on top of the staircase?
The people are on top of the staircase.
     src        edge_attr  dst
0      0   to the left of   20
1      0   to the left of   18
2      0   to the left of   34
3      0   to the left of   30
4      0  to the right of   25
..   ...              ...  ...
244   37  to the right of   26
245   37  to the right of   36
246   37   to the left of    7
247   37  to the right of    4
248   37   to the left of   19

[249 rows x 3 columns]