Does the mud look white?
No, the mud is brown.
    src        edge_attr  dst
0     1   to the left of   12
1     3               by   15
2     4           behind    5
3     4  to the right of    5
4     4               by   15
5     4  to the right of    7
6     5      in front of    4
7     5   to the left of    4
8     6   to the left of   18
9     6   to the left of   14
10    7   to the left of    4
11    8   to the left of   18
12   12  to the right of    1
13   14  to the right of   16
14   14  to the right of    6
15   15            below   13
16   16   to the left of   14
17   17       growing in   15
18   18  to the right of    8
19   18  to the right of    6