What is the color of the graffiti on the wall?
The graffiti is blue.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of   13
2     1            below    6
3     1        on top of   14
4     1      coming from   14
..  ...              ...  ...
58   14  to the right of   12
59   14   to the left of    5
60   14  to the right of    9
61   15   to the left of    4
62   15  to the right of    2

[63 rows x 3 columns]