How old is the boy that is wearing a shoe?
The boy is young.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    9
2     0  to the right of    6
3     0  to the right of   11
4     2           behind   14
5     2  to the right of   14
6     3   to the left of    0
7     4          wearing   11
8     4          wearing   10
9     4        on top of    3
10    4          wearing    0
11    4       jumping on    3
12    4        riding on    3
13    4  to the right of    6
14    4          wearing   13
15    5   to the left of   14
16    6   to the left of   11
17    6   to the left of    0
18    6   to the left of    4
19    9   to the left of   10
20    9   to the left of    0
21   10  to the right of    9
22   10        on top of    3
23   11        on top of    3
24   11   to the left of    0
25   11  to the right of    6
26   13          worn on   12
27   14   to the left of    2
28   14  to the right of    5
29   14      in front of    2