Where are the people?
The people are on the bus.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of    2
2     0  to the right of   19
3     1  to the right of   12
4     1  to the right of   14
5     2  to the right of    0
6     2  to the right of   19
7     2  to the right of    8
8     3  to the right of   17
9     4  to the right of   17
10    6               on    5
11    7  to the right of    8
12    8   to the left of    2
13    8   to the left of   13
14    8   to the left of    7
15    8   to the left of   21
16    9  to the right of   17
17    9  to the right of   16
18   10  to the right of   17
19   10  to the right of   11
20   11   to the left of   10
21   11  to the right of   17
22   12  to the right of   19
23   12   to the left of    1
24   12  to the right of    0
25   12   to the left of   13
26   12   to the left of   14
27   13  to the right of   12
28   13  to the right of    8
29   14   to the left of    1
30   14  to the right of   12
31   15  to the right of   17
32   16  to the right of   17
33   16   to the left of    9
34   17   to the left of   18
35   17   to the left of   19
36   17   to the left of    9
37   17   to the left of    3
38   17   to the left of    4
39   17   to the left of   22
40   17   to the left of   10
41   17   to the left of   11
42   17   to the left of   15
43   17   to the left of   16
44   18  to the right of   17
45   18  to the right of   20
46   19   to the left of   12
47   19   to the left of    2
48   19  to the right of   17
49   19   to the left of    0
50   20   to the left of   18
51   21  to the right of    8
52   22  to the right of   17