Is the fork in the top part of the picture?
Yes, the fork is in the top of the image.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of   10
2     0  to the right of   20
3     0   to the left of   19
4     0   to the left of    6
5     0   to the left of    3
6     0  to the right of    9
7     0  to the right of    7
8     1   to the left of   17
9     3  to the right of   13
10    3  to the right of    0
11    5   to the left of   17
12    5   to the left of   14
13    5   to the left of   20
14    6  to the right of    0
15    6  to the right of   17
16    7   to the left of    0
17    7   to the left of   17
18    7   to the left of   11
19    8  to the right of   11
20    9   to the left of    0
21    9  to the right of   14
22    9   to the left of   17
23   10  to the right of    0
24   10  to the right of   17
25   11   to the left of   13
26   11  to the right of   20
27   11   to the left of    0
28   11  to the right of    7
29   11   to the left of    8
30   13  to the right of   11
31   13   to the left of    3
32   14   to the left of    9
33   14  to the right of    5
34   14   to the left of   20
35   14   to the left of   17
36   16   to the left of   17
37   17   to the left of   10
38   17  to the right of   14
39   17  to the right of    7
40   17   to the left of    6
41   17  to the right of   20
42   17  to the right of   16
43   17   to the left of   19
44   17  to the right of    5
45   17  to the right of    1
46   17  to the right of    9
47   19  to the right of   17
48   19  to the right of    0
49   20   to the left of    0
50   20   to the left of   11
51   20  to the right of    5
52   20   to the left of   17
53   20  to the right of   14