What animal is the man on?
The man is on the horse.
    src        edge_attr  dst
0     0             near    3
1     0             near    5
2     0             near    1
3     0  to the right of    1
4     0  to the right of    5
5     1             near    0
6     1             near    5
7     1   to the left of    0
8     2             near    3
9     2   to the left of    3
10    2   to the left of    6
11    3           riding    2
12    3               on    2
13    3  to the right of    2
14    3             near    2
15    3             near    0
16    4            above    5
17    5             near    1
18    5   to the left of    0
19    5             near    0
20    6  to the right of    2