Who is riding the bicycle?
The guy is riding the bicycle.
    src        edge_attr  dst
0     1  to the right of    8
1     1   to the left of   16
2     1   to the left of   12
3     1  to the right of   10
4     2  to the right of   12
5     2   to the left of    5
6     3  to the right of    8
7     4             with   14
8     4   to the left of    6
9     4           riding   13
10    4               on   13
11    5  to the right of   12
12    5  to the right of    7
13    5  to the right of   11
14    5  to the right of    6
15    5  to the right of   14
16    5  to the right of    2
17    6  to the right of    4
18    6  to the right of   14
19    6   to the left of    5
20    6  to the right of   11
21    7   to the left of    5
22    7  to the right of   14
23    7  to the right of   11
24    7  to the right of   12
25    8   to the left of   16
26    8   to the left of    1
27    8   to the left of    9
28    8   to the left of   10
29    8   to the left of   11
30    8   to the left of    3
31    8   to the left of   14
32    9   to the left of   12
33    9  to the right of   10
34    9   to the left of   16
35    9  to the right of    8
36   10   to the left of   16
37   10  to the right of    8
38   10   to the left of    9
39   10   to the left of    1
40   11   to the left of    7
41   11  to the right of    8
42   11   to the left of    6
43   11   to the left of    5
44   12   to the left of    5
45   12   to the left of    2
46   12  to the right of    9
47   12  to the right of    1
48   12  to the right of   16
49   12   to the left of    7
50   14   to the left of    6
51   14  to the right of    8
52   14   to the left of    7
53   14   to the left of    5
54   16               on    3
55   16  to the right of    8
56   16  to the right of    9
57   16  to the right of   10
58   16   to the left of   12
59   16  to the right of    1