What is the color of the large palm trees?
The palm trees are dark.
    src        edge_attr  dst
0     0             near    5
1     0             near    3
2     0             near    2
3     0           beside    5
4     0  to the right of    2
5     0   to the left of    5
6     1   hanging out of    0
7     1   to the left of    4
8     1  to the right of    2
9     2   to the left of    1
10    2   to the left of    0
11    2             near    0
12    2   to the left of    4
13    3             near    0
14    4  to the right of    1
15    4  to the right of    2
16    5  to the right of    0
17    5             near    0