Is the color of the sign different than the coffee cup?
Yes, the sign is black and the coffee cup is white.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of   12
2     0  to the right of   23
3     0  to the right of   18
4     0  to the right of    3
..  ...              ...  ...
86   25  to the right of   14
87   26   to the left of   10
88   26   to the left of    0
89   26  to the right of    5
90   26  to the right of    6

[91 rows x 3 columns]