What kind of device is the man holding?
The man is holding the cell phone.
    src        edge_attr  dst
0     0   to the left of   14
1     1               on    2
2     3          holding   14
3     3          wearing    7
4     3       looking at   14
5     3          wearing    8
6     4   to the left of   11
7     6  to the right of    9
8     6   to the left of   14
9     8   to the left of   12
10    8   to the left of   11
11    9   to the left of    6
12   11  to the right of    4
13   11  to the right of   15
14   11  to the right of    8
15   12  to the right of   15
16   12  to the right of    8
17   13               on    1
18   14  to the right of    6
19   14  to the right of    0
20   14  to the right of   15
21   15   to the left of   14
22   15   to the left of   12
23   15   to the left of   11