Who is using the bike?
The man is using the bike.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    1
2     1  to the right of    0
3     2  to the right of    4
4     2  to the right of    3
5     2  to the right of    0
6     3             near    4
7     3        pushed by    4
8     3  to the right of    5
9     3   to the left of    2
10    4             near    3
11    4          pushing    3
12    4            using    3
13    4             near    5
14    4  to the right of    5
15    4           moving    3
16    4   to the left of    2
17    5          next to    4
18    5         watching    4
19    5         watching    3
20    5             near    4
21    5   to the left of    3
22    5   to the left of    4