Does the mud look brown?
Yes, the mud is brown.
    src        edge_attr  dst
0     0   to the left of    3
1     3  to the right of    0
2     4               of    6
3     4       covered in    8
4     5   to the left of    6
5     6         lying on    7
6     6       playing in    5
7     6         lying in    8
8     6  to the right of    5
9    10               of    6
10   11               of    6