What's the sink made of?
The sink is made of metal.
     src        edge_attr  dst
0      0  to the right of   34
1      1  to the right of   22
2      1  to the right of   34
3      2  to the right of   18
4      2   to the left of   11
..   ...              ...  ...
133   35   to the left of   22
134   36   to the left of   34
135   36               on   35
136   36   to the left of    4
137   36   to the left of   21

[138 rows x 3 columns]