Is the animal that is running gray or red?
The horse is gray.
    src        edge_attr  dst
0     1   to the left of    6
1     2  to the right of    6
2     3  to the right of   13
3     6   to the left of    8
4     6   to the left of    2
5     6  to the right of    1
6     7               in    9
7     8          wearing    5
8     8           riding   11
9     8          wearing   12
10    8  to the right of   13
11    8  to the right of    6
12    8          wearing    3
13    8          wearing    2
14   11          wearing    4
15   12  to the right of   13
16   13   to the left of   12
17   13   to the left of    8
18   13   to the left of    3