Which color do you think the letters are?
The letters are orange.
    src        edge_attr  dst
0     0  to the right of    2
1     2   to the left of   14
2     2   to the left of    0
3     2   to the left of    5
4     3               of    0
5     3  to the right of   10
6     3  to the right of    5
7     4  to the right of   14
8     5  to the right of    2
9     5   to the left of    3
10    5   to the left of   12
11    6   to the left of    9
12    8  to the right of   14
13    9  to the right of    6
14   10   to the left of    3
15   12  to the right of    5
16   13  to the right of   14
17   14   to the left of    4
18   14   to the left of    8
19   14   to the left of   13
20   14  to the right of    2