Where is the brush?
The brush is on the dirt.
    src        edge_attr  dst
0     1   to the left of    5
1     1   to the left of    6
2     2  to the right of   10
3     3               on   14
4     3  to the right of   13
5     3  to the right of    7
6     3  to the right of   11
7     4         touching   14
8     4   to the left of    9
9     5  to the right of    6
10    5  to the right of    1
11    6   to the left of    5
12    6  to the right of    1
13    7   to the left of   15
14    7               on   14
15    7   to the left of    3
16    7             near   11
17    7   to the left of   10
18    9  to the right of    4
19   10   to the left of    2
20   10  to the right of   11
21   10  to the right of    7
22   11          next to    7
23   11             near    7
24   11   to the left of   10
25   11   to the left of    3
26   11   to the left of   13
27   12               on   11
28   13   to the left of    3
29   13  to the right of   11
30   15  to the right of    7
31   15               on   14