What is the color of the letters?
The letters are orange.
    src        edge_attr  dst
0     0               of    6
1     2  to the right of   10
2     4  to the right of   10
3     6        parked in    5
4     6           behind   10
5     6           behind    7
6     7      in front of    6
7     7  to the right of   13
8    10   to the left of    4
9    10   to the left of    2
10   13               on   11
11   13   to the left of    7