Is the horse on the left?
Yes, the horse is on the left of the image.
    src        edge_attr  dst
0     0   to the left of    6
1     0  to the right of    3
2     0  to the right of    8
3     3   to the left of    0
4     3   to the left of    6
5     4  to the right of    7
6     6  to the right of    8
7     6  to the right of    3
8     6  to the right of    0
9     7   to the left of    4
10    8   to the left of    0
11    8   to the left of    6