The number is printed on what?
The number is printed on the vest.
    src        edge_attr  dst
0     0   to the left of    2
1     0  to the right of    7
2     0   to the left of   13
3     0  to the right of    8
4     0   to the left of   10
5     1   to the left of   11
6     2  to the right of    0
7     3   to the left of   11
8     4   to the left of   11
9     5       printed on    4
10    5   to the left of   11
11    7   to the left of    0
12    8   to the left of    0
13    9  to the right of   12
14   10  to the right of    0
15   11  to the right of    5
16   11  to the right of    1
17   11  to the right of    3
18   11  to the right of   16
19   11  to the right of   17
20   11  to the right of    4
21   12   to the left of    9
22   13  to the right of    0
23   16          wearing   13
24   16          wearing    0
25   16   to the left of   11
26   16          wearing    8
27   16          wearing    4
28   17   to the left of   11