What is on the bed in the middle?
The sheet is on the bed.
     src        edge_attr  dst
0      0   to the left of   22
1      0   to the left of   18
2      1  to the right of    6
3      1   to the left of    3
4      1   to the left of   45
..   ...              ...  ...
167   46   to the left of   18
168   47  to the right of    3
169   47  to the right of   15
170   47   to the left of   20
171   47   to the left of   21

[172 rows x 3 columns]