What color do the shoes have?
The shoes have blue color.
    src        edge_attr  dst
0     1   to the left of    4
1     2          wearing    8
2     2          wearing    7
3     2          wearing   11
4     4  to the right of    1
5     4  to the right of   13
6     4  to the right of   12
7     4  to the right of   14
8     5               on   15
9    10  to the right of   12
10   12   to the left of    4
11   12   to the left of   10
12   13   to the left of    4
13   14   to the left of    4