What is under the sink?
The pipe is under the sink.
   src        edge_attr  dst
0    1            above    7
1    1  to the right of    6
2    2   to the left of    7
3    3   to the left of    7
4    6   to the left of    1
5    7            under    1
6    7            below    1
7    7  to the right of    3
8    7  to the right of    2
9    9               in    8