What color is the towel the tent is to the left of?
The towel is green.
    src        edge_attr  dst
0     3   to the left of   15
1     3   to the left of    4
2     3   to the left of   17
3     3   to the left of   16
4     4  to the right of   17
5     4  to the right of    3
6     4               on    7
7     4  to the right of    6
8     4  to the right of   14
9     6   to the left of   12
10    6  to the right of   14
11    6   to the left of    4
12    6   to the left of   17
13    7               on    2
14   10               in    9
15   11   to the left of   14
16   12  to the right of   14
17   12  to the right of    6
18   13               in    2
19   13  to the right of   15
20   14   to the left of   15
21   14               on    7
22   14   to the left of    6
23   14   to the left of    4
24   14  to the right of   11
25   14   to the left of   17
26   14   to the left of   12
27   15   to the left of   13
28   15  to the right of    3
29   15  to the right of   14
30   16  to the right of    3
31   16  to the right of   17
32   16   to the left of   18
33   17  to the right of   14
34   17   to the left of   16
35   17  to the right of    6
36   17   to the left of   18
37   17  to the right of    3
38   17   to the left of    4
39   18  to the right of   17
40   18  to the right of   16