Who is wearing the flip flops?
The passengers are wearing flip flops.
    src        edge_attr  dst
0     0   to the left of   22
1     0   to the left of   11
2     1  to the right of   22
3     1   to the left of   19
4     1  to the right of   11
5     2               in   14
6     3   to the left of    5
7     3               in   14
8     4               in   14
9     4   to the left of    5
10    5               in   14
11    5  to the right of    3
12    5  to the right of    4
13    6  to the right of   15
14    6   to the left of   16
15    8  to the right of   10
16    9               on    0
17    9  to the right of   13
18    9   to the left of   11
19   10               of   15
20   10   to the left of   12
21   10   to the left of    8
22   11   to the left of   20
23   11  to the right of   13
24   11   to the left of    1
25   11  to the right of    0
26   11  to the right of    9
27   11   to the left of   19
28   12  to the right of   15
29   12  to the right of   10
30   13   to the left of    9
31   13   to the left of   11
32   15   to the left of    6
33   15   to the left of   21
34   15   to the left of   12
35   16  to the right of   21
36   16  to the right of    6
37   18  to the right of   21
38   19  to the right of   22
39   19          wearing   23
40   19          wearing    7
41   19  to the right of   20
42   19  to the right of    1
43   19  to the right of   11
44   19         carrying   13
45   20  to the right of   22
46   20   to the left of   19
47   20  to the right of   11
48   21  to the right of   15
49   21   to the left of   16
50   21   to the left of   22
51   21   to the left of   18
52   22          driving   11
53   22               on   11
54   22   to the left of   20
55   22   to the left of   19
56   22   to the left of    1
57   22  to the right of    0
58   22  to the right of   21