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