How are the gray articles of clothing called?
The clothing items are pants.
    src        edge_attr  dst
0     1  to the right of    4
1     1  to the right of    7
2     2  to the right of    6
3     4   to the left of    1
4     6       sitting on   12
5     6   to the left of    2
6     7   to the left of    1
7     9   to the left of   14
8     9   to the left of   13
9    13  to the right of    9
10   14  to the right of    9
11   15          wearing    8
12   15          holding    7
13   15          wearing   13
14   15          wearing   14