Is the fence brown or blue?
The fence is brown.
    src  edge_attr  dst
0     1         by    2
1     1       near    2
2     1       near    4
3     2         on    4
4     2      under    3
5     2  eating in    4
6     2         in    4
7     2      below    3
8     2       near    3
9     2       near    1
10    3      above    2
11    3       near    2
12    4       near    1