On which side is the skateboard?
The skateboard is on the left of the image.
   src        edge_attr  dst
0    0  to the right of    1
1    1   to the left of    0
2    3   to the left of   10
3    9   to the left of   11
4   10  to the right of    3
5   11   to the left of   13
6   11  to the right of    9
7   13          wearing    5
8   13  to the right of   11