Is the red book to the left of a chair?
No, the book is to the right of a chair.
     src        edge_attr  dst
0      0   to the left of   23
1      0   to the left of   20
2      0  to the right of   35
3      0  to the right of   34
4      0               at   12
..   ...              ...  ...
266   39  to the right of   38
267   40  to the right of   19
268   40   to the left of    7
269   40   to the left of   38
270   40   to the left of   26

[271 rows x 3 columns]