What does the person to the right of the taxi wear?
The man wears a vest.
    src        edge_attr  dst
0     0   to the left of   12
1     0             near   20
2     0   to the left of   20
3     1   to the left of   10
4     4       hanging on   21
5     5  to the right of    7
6     5  to the right of   17
7     7               on    8
8     7  to the right of   18
9     7   to the left of   10
10    7         entering    8
11    7   to the left of   17
12    7  to the right of   13
13    7   to the left of    5
14    9   to the left of   13
15    9   to the left of   18
16    9   to the left of   16
17   10          wearing    5
18   10  to the right of    7
19   10  to the right of   17
20   10  to the right of    1
21   12  to the right of    0
22   13               on    8
23   13  to the right of    9
24   13   to the left of    7
25   16  to the right of    9
26   16   to the left of   18
27   17   to the left of    5
28   17  to the right of    7
29   17   to the left of   10
30   17     driving down    8
31   18  to the right of   16
32   18   to the left of    7
33   18   to the left of   20
34   18  to the right of    9
35   20  to the right of   18
36   20  to the right of    0
37   20          next to    0