Of which color is the elephant beside the other elephant?
The elephant is black.
    src        edge_attr  dst
0     0             near    7
1     0   to the left of    5
2     0           beside    7
3     2   to the left of    6
4     2   to the left of    5
5     2   to the left of    3
6     3  to the right of    2
7     3   to the left of    4
8     3               on    6
9     4  to the right of    3
10    5               in    7
11    5  to the right of    2
12    5  to the right of    0
13    6               in    7
14    6           beside    5
15    6  to the right of    2
16    7             near    0