Are there boxes to the left of the cutting board?
Yes, there is a box to the left of the cutting board.
     src        edge_attr  dst
0      0  to the right of   28
1      0  to the right of   30
2      1  to the right of   27
3      1  to the right of   30
4      1   to the left of   19
..   ...              ...  ...
138   30   to the left of    1
139   30   to the left of   28
140   30   to the left of    0
141   30   to the left of   26
142   30   to the left of   20

[143 rows x 3 columns]