Which kind of device is on the papers?
The device is a phone.
    src        edge_attr  dst
0     1  to the right of   15
1     1         touching   16
2     2          wearing   21
3     2   to the left of   19
4     2   to the left of   17
5     2   to the left of    9
6     3   to the left of   10
7     4   to the left of   18
8     4               on   18
9     4   to the left of   10
10    4   to the left of   14
11    8   to the left of   17
12    8   to the left of   19
13    9  to the right of    2
14   10  to the right of    3
15   10               of    7
16   10  to the right of   18
17   10  to the right of    4
18   13   to the left of   16
19   13               on   18
20   14  to the right of   18
21   14  to the right of    4
22   14               of   19
23   15   to the left of    1
24   16  to the right of   13
25   17  to the right of    2
26   17  to the right of    8
27   18   to the left of   14
28   18          next to   19
29   18             near   19
30   18   to the left of   10
31   18  to the right of    4
32   19          wearing    9
33   19             near   18
34   19          wearing   20
35   19            using    7
36   19  to the right of    2
37   19       looking at    7
38   19  to the right of    8