What is the dirt on?
The dirt is on the chair.
    src        edge_attr  dst
0     0          next to   14
1     0   to the left of    4
2     0   to the left of   13
3     0             near   14
4     0  to the right of    3
5     1  to the right of    3
6     2   to the left of   11
7     2               on   11
8     2  to the right of    8
9     2  to the right of    6
10    2  to the right of   15
11    3   to the left of    7
12    3   to the left of    6
13    3   to the left of    5
14    3   to the left of   14
15    3   to the left of   15
16    3   to the left of    1
17    3   to the left of    0
18    4  to the right of   14
19    4  to the right of    0
20    5               on    6
21    5  to the right of    9
22    5  to the right of    3
23    6   to the left of   10
24    6               on    6
25    6  to the right of    9
26    6   to the left of    2
27    6  to the right of    3
28    7  to the right of    3
29    8   to the left of   14
30    8   to the left of   15
31    8    lying next to   14
32    8   to the left of    2
33    9   to the left of    5
34    9   to the left of    6
35    9   to the left of   12
36   10  to the right of    6
37   11  to the right of   14
38   11  to the right of    2
39   12  to the right of    9
40   13  to the right of   14
41   13  to the right of    0
42   13          next to   14
43   14  to the right of    3
44   14             near   13
45   14         touching    2
46   14             near    0
47   14  to the right of    8
48   14   to the left of    4
49   14   to the left of   13
50   14   to the left of   11
51   15   to the left of    2
52   15  to the right of    8
53   15    lying next to   14
54   15  to the right of    3