What is the name of the items of clothing that are blue?
The clothing items are pants.
    src        edge_attr  dst
0     0   to the left of   17
1     1               on   17
2     1  to the right of   18
3     1   to the left of    8
4     1  to the right of    7
5     1  to the right of    5
6     4   to the left of   10
7     5               of   14
8     5   to the left of   17
9     5   to the left of    1
10    6   to the left of   11
11    7   to the left of    1
12    7   to the left of   17
13    7           behind   14
14    8               on   10
15    8  to the right of   17
16    8             near   14
17    8  to the right of    1
18    9   to the left of   10
19   10  to the right of    9
20   10  to the right of    4
21   11  to the right of    6
22   11  to the right of   17
23   11               on   10
24   13  to the right of   16
25   14          wearing    6
26   14          wearing    2
27   14               in   12
28   14             near    8
29   14      in front of    7
30   14       sitting on   12
31   14             with   19
32   14             with   18
33   14          wearing   15
34   14       sitting in   12
35   14        typing on   11
36   15  to the right of   16
37   16   to the left of   13
38   16   to the left of   15
39   17   to the left of   11
40   17  to the right of    0
41   17  to the right of    5
42   17  to the right of   19
43   17  to the right of    7
44   17  to the right of   18
45   17   to the left of    8
46   18   to the left of   17
47   18   to the left of    1
48   19   to the left of   17