Is the lamp yellow or black?
The lamp is yellow.
   src        edge_attr  dst
0    0   to the left of    3
1    0   to the left of    2
2    1  to the right of    3
3    1  to the right of    2
4    2               on    3
5    2  to the right of    0
6    2   to the left of    1
7    3   to the left of    1
8    3  to the right of    0
9    5               on    4