Who is riding a bike?
The lady is riding a bike.
    src        edge_attr  dst
0     1   to the left of    7
1     2   to the left of    7
2     2  to the right of    8
3     2  to the right of    9
4     4               on    1
5     4           riding    1
6     5   to the left of    8
7     7  to the right of    2
8     7  to the right of    1
9     8   to the left of    2
10    8  to the right of    9
11    8  to the right of    5
12    9   to the left of    2
13    9   to the left of    8