Which color is that curtain?
The curtain is purple.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    2
2     1   to the left of   23
3     1   to the left of   22
4     1   to the left of   12
..  ...              ...  ...
90   23  to the right of    9
91   24   to the left of    8
92   24   to the left of   11
93   24  to the right of    3
94   25        on top of   19

[95 rows x 3 columns]