On what kind of furniture is the clock?
The clock is on the shelf.
     src        edge_attr  dst
0      0  to the right of   10
1      0   to the left of   15
2      0   to the left of   12
3      0  to the right of    2
4      1   to the left of    2
..   ...              ...  ...
139   23  to the right of   10
140   23   to the left of   16
141   23  to the right of   20
142   23  to the right of    5
143   23  to the right of    1

[144 rows x 3 columns]