What color is the open umbrella?
The umbrella is brown.
   src        edge_attr  dst
0    1   to the left of    2
1    2  to the right of    3
2    2  to the right of    1
3    3   to the left of    2
4    3          holding    0
5    3          holding    2
6    4               on    0
7    5               by    3