On which side is the brown horse?
The horse is on the right of the image.
    src        edge_attr  dst
0     2             near    4
1     2             near    5
2     3  to the right of    6
3     3  to the right of    8
4     4             near    8
5     4             near    2
6     4             near    9
7     5          next to    2
8     5   on the side of    4
9     6  to the right of    9
10    6  to the right of    8
11    6   to the left of    3
12    7  to the right of    9
13    8   to the left of    3
14    8             near    4
15    8   to the left of    6
16    9           riding    8
17    9        on top of    8
18    9   to the left of    6
19    9   to the left of    7
20    9             near    4