Which color are the flowers behind the fence, yellow or purple?
The flowers are yellow.
    src        edge_attr  dst
0     0  to the right of   19
1     0   to the left of   18
2     0  to the right of   20
3     0   to the left of    5
4     0   to the left of   17
5     0   to the left of   14
6     1               of   15
7     1  to the right of    2
8     1  to the right of   10
9     2   to the left of    8
10    2   to the left of    1
11    3             near   17
12    4             near   12
13    5  to the right of    0
14    5  to the right of   21
15    6  to the right of    8
16    7  to the right of    8
17    8  to the right of    2
18    8  to the right of   10
19    8   to the left of    7
20    8   to the left of    6
21   10           behind   12
22   10   to the left of    8
23   10   to the left of    1
24   11               of   15
25   12      in front of   15
26   12      in front of   10
27   12             near    4
28   14  to the right of   21
29   14  to the right of    0
30   15           behind   12
31   15            above   16
32   16            under   15
33   17  to the right of    0
34   17             near    3
35   17  to the right of   21
36   18  to the right of   21
37   18  to the right of    0
38   18               on   17
39   19   to the left of    0
40   19   to the left of   21
41   20   to the left of    0
42   20   to the left of   21
43   20               on   19
44   21  to the right of   19
45   21  to the right of   20
46   21   to the left of    5
47   21   to the left of   14
48   21   to the left of   17
49   21   to the left of   18