Is it outdoors or indoors?
It is outdoors.
    src        edge_attr  dst
0     4   to the left of   15
1     4   to the left of   11
2     4   to the left of   13
3     7   to the left of   13
4     7   to the left of   15
5     7   to the left of   11
6     8   to the left of   11
7     8   to the left of   13
8     8   to the left of   15
9    10   to the left of   15
10   10   to the left of   13
11   11   on the back of    3
12   11           riding    3
13   11  to the right of   15
14   11  to the right of    7
15   11  to the right of    4
16   11  to the right of    8
17   13  to the right of    7
18   13  to the right of    8
19   13  to the right of    4
20   13  to the right of   10
21   15   on the back of    3
22   15           riding    3
23   15   to the left of   11
24   15  to the right of   10
25   15  to the right of    8
26   15  to the right of    7
27   15  to the right of    4