Which color is the zebra on the grass?
The zebra is white.
    src        edge_attr  dst
0     0          beneath    1
1     0            below    1
2     0          next to    2
3     0             near    2
4     1          next to    8
5     1             near    8
6     1               on    0
7     1   to the left of    8
8     2             near    0
9     3   to the left of    8
10    3  to the right of    9
11    4   to the left of    8
12    4  to the right of    9
13    5  to the right of    8
14    6  to the right of    8
15    7  to the right of   10
16    8             near    1
17    8   to the left of    6
18    8  to the right of    9
19    8  to the right of    3
20    8  to the right of    1
21    8   to the left of    5
22    8  to the right of    4
23    9   to the left of    3
24    9   to the left of    8
25    9   to the left of    4
26   10   to the left of    7