What type of clothing is blue?
The clothing is a uniform.
    src        edge_attr  dst
0     1  to the right of   12
1     1  to the right of    4
2     1  to the right of   10
3     3               on    0
4     4   to the left of    1
5     4   to the left of    8
6     4   to the left of   13
7     4          wearing    7
8     4   to the left of   16
9     4   to the left of   19
10    4   to the left of   15
11    4   to the left of   10
12    6  to the right of   15
13    7   to the left of   12
14    7   to the left of    9
15    7   to the left of   16
16    8   to the left of   17
17    8  to the right of    4
18    8  to the right of   10
19    9  to the right of    7
20   10   to the left of    8
21   10  to the right of    4
22   10   to the left of   13
23   10   to the left of    1
24   12  to the right of    7
25   12   to the left of   16
26   12   to the left of   13
27   12   to the left of    1
28   13  to the right of    4
29   13  to the right of   12
30   13  to the right of   10
31   14   to the left of   16
32   15   to the left of    6
33   15  to the right of    4
34   16  to the right of   12
35   16  to the right of    7
36   16  to the right of   14
37   16  to the right of    4
38   16          wearing   13
39   16          wearing   18
40   16          wearing   17
41   17  to the right of    8
42   19  to the right of    4