Who is skiing?
The people are skiing.
     src        edge_attr  dst
0      0   to the left of   32
1      0   to the left of    2
2      1   to the left of    9
3      1  to the right of   10
4      1   to the left of   24
..   ...              ...  ...
167   37  to the right of    9
168   38   to the left of   10
169   39   to the left of   16
170   39  to the right of   32
171   39   to the left of   24

[172 rows x 3 columns]