Are the people surfing or skiing?
The people are skiing.
    src        edge_attr  dst
0     0  to the right of    8
1     0   to the left of    2
2     0   to the left of    1
3     0  to the right of    4
4     1  to the right of    0
5     1  to the right of    2
6     2  to the right of    0
7     2  to the right of    8
8     2   to the left of    1
9     3   to the left of   10
10    4   to the left of    0
11    4   to the left of    8
12    7  to the right of    9
13    8   to the left of    0
14    8   to the left of    2
15    8  to the right of    4
16    9   to the left of    7
17   10  to the right of    3