What's the person using?
The person is using glasses.
    src        edge_attr  dst
0     1          wearing    9
1     1          wearing    7
2     1            using    9
3     1      in front of    4
4     3   to the left of   10
5     3   to the left of    8
6     3   to the left of    5
7     4           behind    1
8     4   to the left of    8
9     4   to the left of   10
10    5  to the right of    6
11    5  to the right of    3
12    6   to the left of    5
13    8  to the right of    3
14    8  to the right of    4
15    9        on top of    0
16    9      in front of   10
17   10  to the right of    3
18   10  to the right of    4