Where is the bus?
The bus is at the station.
    src        edge_attr  dst
0     0  to the right of   14
1     0  to the right of    3
2     0  to the right of   19
3     1   to the left of   17
4     1  to the right of   12
5     1  to the right of   10
6     1   to the left of   14
7     1   to the left of    4
8     2   to the left of    8
9     3   to the left of    6
10    3   to the left of    0
11    3               at   19
12    4               on   16
13    4          wearing    7
14    4          holding    5
15    4  to the right of    5
16    4  to the right of   15
17    4  to the right of    7
18    4  to the right of    1
19    4   to the left of   14
20    4  to the right of   11
21    4  to the right of   13
22    5   to the left of    4
23    5  to the right of   13
24    6  to the right of   19
25    6  to the right of    3
26    7   to the left of    4
27    7   to the left of   14
28    7  to the right of   12
29    8  to the right of    2
30   10   to the left of    1
31   10   to the left of   12
32   11   to the left of   15
33   11   to the left of    4
34   11  to the right of   12
35   11   to the left of   14
36   12   to the left of   15
37   12   to the left of    1
38   12   to the left of    7
39   12  to the right of   10
40   12   to the left of   11
41   13   to the left of    5
42   13   to the left of    4
43   14  to the right of    4
44   14   to the left of    0
45   14  to the right of    1
46   14  to the right of   11
47   14  to the right of    7
48   14  to the right of   15
49   15  to the right of   11
50   15  to the right of   12
51   15   to the left of   14
52   15   to the left of    4
53   17  to the right of    1
54   19   to the left of    0
55   19   to the left of    6