What color do the leaves have?
The leaves have yellow color.
    src        edge_attr  dst
0     0          next to    2
1     0             near    2
2     1    surrounded by    8
3     1            above    8
4     1           behind    7
5     1               by    9
6     1             near   10
7     1  to the right of    5
8     1  to the right of    4
9     1  to the right of    2
10    1               in    5
11    2             near    7
12    2             near    0
13    2   to the left of    1
14    3   to the left of    8
15    4   to the left of    1
16    4               in    5
17    5   to the left of    1
18    5   to the left of   11
19    6  to the right of    9
20    7             near    2
21    8            under    1
22    8  to the right of    3
23    9   to the left of    6
24   10          next to    1
25   11  to the right of    5